Maybe the optical drive is broken

I found something for you from the Internet, I hope it can help you

1. Software reasons

1. The IDE driver is installed incorrectly or conflicts with a certain driver

If we do not install the IDE driver correctly when installing WINDOWS, or after installation, when you open the device manager to view When you find a yellow exclamation mark in "Hard Disk Controller", the drive letter of the optical drive may not be found.

Under normal circumstances, when we enter safe mode, the drive letter of the optical drive will not be there. If we want to use the optical drive in safe mode, we can load the optical drive driver in the Autoexec.BAT and Config.sys files, so that after restarting the computer, we can use the optical drive in safe mode.

2. The number of LASTDRIVEs set in the CONFIG file is too small

If we are in CONFIG. The number of "LASTDRIVE=?" set in the SYS file is too small, smaller than the actual number of drives. At this time, even if we install the optical drive, we cannot see the shadow of the optical drive in "My Computer". At this time, just remove this setting or set it to "LASTDRIVE=Z".

3. Improper DMA settings

If the optical drive only supports the PIO4 standard and does not support the DMA/33 standard, but we force the optical drive to use this standard (in the "My Computer" attribute Check "√" before "DMA" in the "Settings" option of the "CDROM" properties of the optical drive in "Device Manager"). At this time, the optical drive may be lost, and the computer may not start normally. At this time we can enter safe mode and remove the DMA settings in the CDROM properties. What data transfer mode the hard drive or optical drive we use supports can be seen in the basic configuration table on the second screen during computer startup.

4. The optical drive was maliciously blocked in the registry.

In "NoDrivers" in "My Phone HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVrsion/Polices/xplorer" Whether the binary value is the value of the optical drive. Under normal circumstances, there is no such item. You can also change the value of this item to "00 00 00 00" (01 00 00 00 is A, 04 00 00 00 is C, FF FF FF FF is hidden All drives).

Note: There are viruses that specifically change the registry, causing the CD-ROM drive letter to be lost. Some viruses will not cause the CD-ROM drive letter to be lost, but they will prevent the CD-ROM drive from reading the disk. The CD cannot be read, but it can be booted from the CD.

5. Is the CD-ROM driver installed correctly?

Usually, WINDOWS comes with a CD-ROM drive, so no additional driver is required. Add. If the driver of the optical drive is not its own driver, the optical drive may be lost. This situation usually occurs when the so-called "optimization", "acceleration program" or other programs are added. Enter safe mode and delete the "CDROM" option in "Device Manager", then restart the computer and let the system discover the new hardware and reinstall the CD-ROM driver.

6. Improper CMOS settings

If the transfer mode is set incorrectly in the CMOS settings - an old optical drive that does not support PIO MODE3 or PIO MODE4 or DMA/33 will have an icon showing no optical drive in WINDOWS, and no optical drive is available. Enter the CMOS and change the "INTEGRATED PERIPHERAIS" item, "IDE PRIMARY MASTER PIO (or UDMA)" and "IDE PRIMARY SLAVE PIO (or UDMA)" to "AUTO".

7. Improper use of virtual optical drives

Virtual optical drives can avoid frequent reading of optical discs, increase reading speed, and provide the possibility for us to play optical disc games conveniently. However, sometimes when we do not want to use the virtual optical drive program, want to uninstall it or want to install the latest program, an accident occurs. The virtual optical drive has a drive letter, but the actual optical drive letter is lost.

2. Hardware reasons

1. The data cable is connected reversely or the data cable is damaged

When the optical drive is lost, you should first check the data cable of the optical drive. Is it connected backwards or is it loose? If you are sure that there is no problem elsewhere and the data cable of the optical drive moves frequently, you should try changing a data cable.

2. The jumper setting conflicts with the hard disk

When the jumper of the optical drive is the same as that of the hard disk connected on the same data line, the optical drive cannot be found (it may also be There is no hard disk), in this case, you only need to jump the jumper of the optical drive to be different from that of the hard disk. In order to improve the data transfer rate, it is best to separate the hard disk and optical drive on two IDE interfaces.

3. The power cord is faulty, the +5V voltage is missing or the +5V voltage supply is abnormal.

This situation rarely occurs. Because we used too much force when disassembling the optical drive or hard disk, the D-type plug of the power supply became loose, or the plug became oxidized and rusted due to the harsh computer working environment. The power supply to the optical drive was not normal, and the optical drive could not find it.

4. The IDE interface is damaged

If the drive letter of the optical drive is suddenly lost and the optical drive cannot be used, we can exchange the interfaces of the optical drive and the hard disk. If you find that the optical drive can be found after restarting, but the hard disk cannot be found, this means that the IDE interface that originally connected the optical drive is damaged; if the computer can start normally after the swap, but there is still no optical drive, this means that the problem is with the optical drive itself. If the optical drive letter is lost, the optical drive can only be replaced.

If there is no optical drive under WINDOWS, we can also use WINDOWS's universal optical drive driver IDE.SYS to try to load it under DOS (press F8 to enter DOS after restarting the computer, not DOS under WIN98) If the optical drive can be loaded successfully, it means that the cause is software, and the cause should be mainly found from software. Otherwise, it should be considered from the hardware aspect.

3. Analysis of common optical drive faults

1. The optical drive can be detected during system self-check, but the optical drive letter is not found under the Windows operating system.

Fault analysis: There are several possibilities for this situation:

A. Entering the operating system in safe mode,

B. Machine Infected with a virus,

C. The optical drive driver that comes with the Windows operating system fails.

Solution: Since the operating system in safe mode does not load any driver, it is normal that the optical drive cannot be found. We only talk about the latter two here. If the virus cannot be found and the drive letter cannot be found, you can use the following methods:

① Use the "System Tools" in "Super Rabbit" to repair the drive Tools for repair.

②. Enter the control panel, select "Add New Hardware", and then follow the prompts step by step. After the system check is completed, you can usually find the optical drive; or; enter the control panel, select "Device Management" "Driver", delete the "Hard Disk Controller" item, and then restart the computer. Since the optical drive and the hard disk use the same controller, it will be automatically recognized after deleting and restarting, and generally the drive letter of the optical drive can be retrieved;

③ If the above method does not work, you can First drive the optical drive in DOS mode, for example, load the universal optical drive driver IDE.SYS to solve the problem.

An example of a "lost" Windows optical drive:

A: On a certain machine, the optical drive icon cannot be seen in "My Computer" (of course, the optical drive cannot be used). In "My Computer/Control Panel/System/Performance", Windows displays information such as "...the master boot record has been overwritten...", so it is suspected that the system is infected with a virus. Use the KV30 antivirus disk to boot the machine, and then check for viruses. Sure enough, a CMOS virus was found in the main boot area of ??the hard disk.

After disinfection, the system returns to normal.

I have a CD in the CD-ROM drive and I can’t take it out. I keep leaving it in the CD-ROM drive. Will this cause a problem to the CD-ROM drive?

There is a small hole on the panel of the CD-ROM drive. Find a pin to identify it. Just poke it and it comes out

The second-hand optical drive can also be used as a CD player. Find an old power supply (586), connect it to a speaker (or headset), turn it on, and enjoy the sound quality. Nothing to say>

I don’t know why my CD-ROM drive keeps popping in and out automatically. Is there any way to solve this interesting and boring problem?

If other aspects of your system are Normally (this is the premise), this situation is that some running programs in your computer process do not release the reading of the optical drive data. It often occurs after installing incomplete large-scale pirated software, playing large-scale disc-driven games, and playing audio or video discs with defective tracks (or the import program of audio and video discs is edited incorrectly). Another possibility is that the laser head of your optical drive is dirty. According to my guess, your system platform is WIN XP, your optical drive has been used for a while (more than a year, or it has been used frequently for a short period of time), and you are impatient when operating the computer.

The solution is:

1. Put a better quality music CD in your CD-ROM drive and restart. In most cases this will be eliminated. This disc does not need to be removed. Whenever you use the optical drive, just take it out.

2. If you can do the following, remove the optical drive, open it, use a cotton ball dipped in absolute alcohol or distilled water to wipe the laser head a few times (wipe in parallel, do not wipe in circles. Do not use detergent - It will form a film), dry for twenty minutes, and then install. You can make the optical drive work for you for a while longer.

3. Clean up your hard drive and defragment it.

3. If it still cannot be restored, overwrite and install the system again. Suggestion: Don’t install too many audio and video player software.

My 40x LG optical drive suddenly stopped reading discs a while ago. The optical drive came out of the drive normally. When I put the disc into the optical drive, the indicator light came on first and then went off. I don’t know what happened. , I opened its casing and wiped the laser head but it didn't work

Based on the fault phenomenon, it was determined that the disc drive's chuck mechanism could not clamp the disc, causing the disc to rotate abnormally and finally stop. The main reason is that the chuck mechanism of optical drives that have been used for a long time may become loose. Sometimes, the center hole of some poor-quality optical discs may be too large, and this phenomenon may also occur. Opening the optical drive is troublesome. You can find an old, slightly thinner disc as a backing plate, place it on top of the optical disc, and then put it into the optical drive together. However, the disc backing plate placed on the disc should not be too thick and must be flat.

The optical drive cannot read the disc, which may be due to the following situations:

1. The bald head is dusty, which makes the disc reading ability worse. If you do the following, remove the optical drive, open it, wipe the laser head with a cotton ball dipped in absolute alcohol or distilled water a few times (wipe it in parallel, do not wipe it in circles. Do not use detergent - it will form a film), dry it Twenty minutes and then install it again. You can make the optical drive work for you for a while longer. Ordinary users do not have the manual skills, so it may be difficult to restore after disassembling and cleaning. It is recommended to buy a disc to clean the bald head. You can buy it at most places that sell discs.

Second, if it has not been used for a long time, the transmission mechanism and moving components of the optical drive lack lubrication, causing the speed to slow down or not to rotate at all. It may be that the sliding shaft of the laser base is out of oil or is stuck. Clean the metal shaft and add some oil. After you put the disc in, pay attention to whether there is a rotating sound or other abnormal sounds, and you can judge.

Third, the laser head is aging. You can increase the output power of the laser head. There is an adjustment screw behind the laser head holder. Slowly rotate it about 15 degrees. If it does not work, turn it again. 15 degrees, try again and again until you can read the film. . .

Four, viruses cause trouble. The optical drive has been maliciously blocked in the registry.

Is the binary value of "NoDrivers" in "My Computer HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVrsion/Polices/xplorer" the value of the optical drive?

Under normal circumstances, this item does not exist. You can also change the value of this item to "00 00 00 00" (01 00 00 00 is A, 04 00 00 00 is C, FF FF FF FF means to hide all drives).

Note: Some viruses now specifically change the registry, causing the CD-ROM drive letter to be lost. Some viruses will not cause the optical drive letter to be lost, but will prevent the optical drive from reading the disk. It cannot read any kind of optical disk, but it can be booted from the optical disk.

5. Whether the optical drive driver is installed correctly. Or its driver is corrupted.

Usually, the optical drive driver comes with WINDOWS and there is no need to add another one. If the driver of the optical drive is not its own driver, the optical drive may also be lost. This situation usually occurs when so-called "optimization", "acceleration program" or other programs are added. At this time, you can enter safe mode and delete the "CDROM" option in "Device Manager", then restart the computer and let the system discover the new hardware by itself and reinstall the optical drive driver.

Sixth, optical drives are worthless now and are rarely used. Because general software can be downloaded from the Internet. Therefore, if the repair cost is high, there is no value in repairing it. Do it yourself, you can revive a dead horse, that's a very exciting thing.

7. Many pirated DVD discs cannot be read using a computer’s DVD drive because the disc quality is too poor. The same goes for the brand new computer I bought. This is not a quality issue with the optical drive. DVD players are designed for DVD audio and video discs, and have good error correction and compatibility capabilities for inferior DVD discs; optical drives mainly read disc data, and their ability to read video discs is certainly not as good as that of DVD players

8. The disc reading performance of the optical drive is poor. This situation usually occurs in a newly purchased assembled computer or a newly purchased optical drive. There is a huge "buzzing" sound when reading the disc. After troubleshooting the optical drive, There is most likely a problem with the power supply. It is necessary to disassemble and inspect it.

Common fault 1: The hard disk light always flashes when the optical drive is working

Cause of the fault: This is an illusion, but it is not actually the case. The hard disk light flashes because the optical drive and the hard disk are connected to the same IDE interface, and the optical disk also controls the hard disk light when it is working. The optical drive unit can be connected to an IDE interface alone.

In addition, many friends reported that when watching movies on DVD, they found that the work indicator light of the hard disk would keep flashing, and no other work was performed during this period. In fact, this is not a problem, because the capacity of current DVD discs is quite large. In order to ensure smooth playback, the computer will pre-store the data in the disc in the cache of the hard drive, which causes the hard drive indicator light to be constantly on. Stopped work.

Common fault 2: The optical drive cannot read the disk normally, and the screen displays: "There is no disk in drive X, insert the disk and try again", or "CDR101:NOT READY READING DRIVE X ABORT .RETRY.FALL?" Occasionally when I put the box in and out of the box, it read the disk, but soon it stopped reading again.

In this case, you should first detect viruses and use anti-virus software to check and disinfect the entire machine. If no virus is found, you can use a file editing software to open the "CONFIG.SYS" file in the root directory of the C drive and check Whether the optical driver is installed and whether the driver is damaged, and processed. You can also use text editing software to check whether there is "MSCDEX.EXE/D:MSCDOOO /M:20/V" in the "AUIOEXEC.BAT" file. If no problem is found in the above two steps, you can disassemble the optical drive for repair.

Common fault three: "32 disk access failed" occurs when operating DVD-ROM in Windows environment, and then crashes.

Cause of the failure: Obviously, the 32-bit disk access of Windows has a certain impact on CD-ROM. Most CD-ROMs are connected to the IDE interface of the hard disk and do not support the 32-bit disk access function of Windows. Windows crashed due to an internal error. This is a frequently encountered fault. Many friends are at a loss when encountering it. In fact, the solution is very simple.

Troubleshooting: After entering Windows, double-click "Control Panel" in "Main Group", enter the "386 Enhanced Mode" settings, click the "Virtual Memory" button and then click "Change". Close the "32-bit disk access" verification box in the lower left corner. After confirmation, restart Windows and access the CD-ROM in Windows without errors.

Common fault four: Read and write errors or no disk prompts appear when using the optical drive

Most of this phenomenon is caused by operating the optical drive before it is in place when changing the disk. fault. All operations on the optical drive must be carried out only after the optical disc indicator light shows that it is in place. When playing a video disc, you should also set the time to zero before changing the disc, so as to avoid the above errors.

Common fault five: The picture freezes or breaks when playing a movie VCD

Check whether "SMARTDRV" in the AUTOEXEC.BAT file is placed after MSCDEX.EXE. If so, the SMARTDRV statement should be placed before MSCDEX.EXE; the high-speed party group local flushing program that does not use the optical drive should be changed to SMARTDRV.EXE/U; the fault can be eliminated.

Common fault 6: When the optical drive is reading data, it sometimes cannot read the data, and the time to read the disk becomes longer

Hardware faults that the optical drive cannot read the disk are mainly concentrated in the laser head assembly. on, and can be divided into two situations: one is that the laser tube is aged due to long use; the other is that the surface of the photoelectric tube is too dirty or the lens of the laser tube is too dirty and is displaced and deformed. Therefore, when adjusting the laser tube power, the photoelectric tube and laser tube lens need to be cleaned.

The cleaning method of photoelectric tube and focusing lens is: unplug a set of flat cables connected to the laser head assembly, remember the direction, and disassemble the laser head assembly. At this time, you can see that the sheath covers the focusing lens of the laser head. After removing the sheath, you will find that the focusing lens is connected to the focusing and tracking coils by four thin copper wires, and the photoelectric tube assembly is installed in the small hole directly below the lens. Wrap cotton with thin iron wire and dip it in a small amount of distilled water to wipe (do not use alcohol to wipe the surface of the photoelectric tube and focusing lens), and check whether the lens is suspended horizontally and facing the laser tube, otherwise it must be adjusted appropriately. At this point, the cleaning work is completed.

Adjust the laser head power. There is a small potentiometer like a Phillips screw on the side of the laser head assembly. Use a color pen to record its initial position. Generally, first rotate it 5° to 10° clockwise. If the machine fails to be installed and tested, then rotate it 5° to 10° counterclockwise until the disk can be read smoothly. Be careful not to rotate it too much to avoid burning the photocell due to too much power.

Common fault 7: The optical drive cannot be detected or the detection fails when booting up

This may be caused by a loose connector of the optical drive data cable, a damaged hard disk data cable, or an incorrect optical drive jumper setting. When encountering this kind of problem, we should first check whether the data cable connector of the optical drive is loose. If it is found that it is not plugged in properly, plug it back in and tighten it. If this still does not solve the problem, then we can find a new data cable and try to replace it. If the fault still exists at this time, we need to check the jumper settings of the CD. If there is an error, just change it.

Pay attention to the following five points when purchasing a DVD drive:

For most consumers, DVD-ROM is no longer a new thing. With the advent of the digital audio and video multimedia era, DVD-ROM has been favored and sought after by many consumers for its high storage capacity and impeccable audio and video quality. Coupled with the vigorous promotion of manufacturers, DVD has changed from the past The "Aristocratic Era" has successfully transitioned to today's "Standard Equipment Era", and the DVD market has become unprecedentedly prosperous as a result. At the same time, DVD drive purchasing skills have become a concern for many consumers. In fact, as long as we pay attention to the following five points when purchasing a DVD drive, we can easily select a satisfactory DVD drive in the complicated market.

1. Error correction capability

The error correction capability of DVD optical drives has always been the focus of discussion. Some people even doubt whether DVD optical drives can truly replace CD-ROMs. In fact, "average error correction capability" is just a shortcoming of early DVD products. As technology matures, current DVD drives usually have satisfactory error correction capabilities.

But it is not easy to truly achieve "super error correction". It depends on whether the major optical drive manufacturers have their own unique technologies. Today, when the phenomenon of "product homogeneity" is serious, comparing error correction is actually comparing unique technologies.

2. Stability

We often encounter this situation. When we buy an optical drive, it can be used in any way and can be used with any disk. But once you use it for a period of time (usually more than 3 months), you find that your disk reading ability drops rapidly. This is what everyone often calls the "honeymoon effect." In order to avoid buying this type of product, we should try to buy a DVD drive with an all-steel movement. In this way, even if it works for a long time under high temperature and high humidity, the performance of the DVD drive can be consistent, which also gives DVD movies The perfect playback provides the most powerful guarantee. Only good teeth and good appetite can make the optical drive as stable as new for a long time. In addition, optical drives with all-steel movements generally have a much longer overall service life than those with ordinary plastic movements.

3. Speed

Speed ??is the standard to measure the speed of a optical drive. Currently, the mainstream DVD optical drives on the market are basically 16X, so why do you need to pay attention to the speed when purchasing a DVD optical drive? Woolen cloth? Because the DVD drive has backward compatibility, in addition to reading DVD discs, the DVD drive also shoulders the burden of reading ordinary CD data discs, so we also need to pay attention to the CD reading speed. The reading speed of mainstream CD-ROM is generally 50X to 52X. However, a large part of the 16X DVD drives currently on the market have a maximum reading speed of only 40X for CD disks.

4. Interface type

Generally speaking, the transmission mode of DVD optical drive is the same as that of CD-ROM, which adopts ATA33 mode. Theoretically, this interface can meet the current needs. Mainstream DVD drive data transmission requirements, after all, the maximum transfer rate of 16X DVD drive is only about 20MB/sec. However, this transmission mode has major drawbacks. When the optical drive reads a disc, the CPU usage is very high. Once some discs with poor quality are encountered, the CPU usage will suddenly increase to about 100%. In this way, No matter how powerful the CPU is, it cannot handle it well when playing DVDs or running other software. In severe cases, it may even cause a crash. Therefore, when purchasing a DVD optical drive, we must pay special attention to the interface mode of the optical drive. If the price difference is not large or there is no price difference at all, try to choose products with ATA66 or even ATA100 interfaces.

5. Brand

A trustworthy brand is one of the keys to purchasing a good DVD drive. Doing this step well will greatly ease the difficulty of purchasing a DVD drive. There are many DVD brands on the market today, but relatively few can really influence the market and have a good reputation among consumers. When you buy products from big brands such as BenQ, SONY, and Pioneer, the quality of the products and after-sales service can be better guaranteed.

There are actually many things that need to be paid attention to when purchasing DVDs, such as price, cache size, appearance, etc., but the author believes that the above five points are the top priority and should be taken absolutely seriously and are specially mentioned here. For your reference. Finally, I wish everyone a smooth journey in purchasing DVDs, and hope that every friend can perfectly enjoy the dual visual and auditory impact of DVD movies. <

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