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Try connect it to other PC.Inspect the connectors inside the PC.
The drive doesn't have power. • Is the power supply cable from the host computer plugged in? • Is the Power Connector to the drive securely attached? • The system doesn't start. • Are the Primary and Secondary connections and the Master and Slave settings correct? • Is the total length of the IDE cable 18 inches or less? • Is each connector completely attached? Other connections may have been knocked lose while installing the drive. • Cannot Read or Write Discs. • Is the condition of everything else in the system (CPU, hard disc, and others) as it should be? (See system environment page 2.) • Does the CD or DVD disc have dirt or scratches? • Did a screen saver or other application operate while writing to the disc? • Is there enough free space on the CD, DVD and DVD-RAM disc? • Does writing fail even using the simulation test? • Is the disc loaded in the drive with the read/write surface facing the right direction? (label up) • Is the drive installed in the correct orientation? • Was the drive or disc moved from a low temperature environment to a high temperature environment? (There is a possibility of condensation on the lens in the drive or on the surface of the disc.) • Using a 40-pin IDE cable might bring the '04/08/03 error (LOGICAL UNIT COMMUNICATION CRC ERROR (ULTRA-DMA/32))'. In this case, substitute to 80-pin type IDE cable is highly recommended. This kind of error is hardly detected from some specific motherboard
Here you go...I hope this works for you....
CD/DVD Is Not Recognized
Many times, after inserting a disc into the CD or DVD drive, the disc is not recognized by that drive. CD-read and DVD-read issues can be caused by many sources. Perform the procedures presented in this General Computer Advice article when troubleshooting CD-read and DVD-read issues.
Begin with the first procedure and continue through the list. Try using the CD or DVD after each procedure is completed. For any procedure that requires changing current system settings, record the original settings before completing the procedure.
Verify that the correct disc (CD/DVD) is used when prompted to insert the disc.
For programs on DVD, verify that the drive containing the DVD is a DVD drive and not a CD-ROM drive. Most DVD drives will haveDVD printed on the front of the drive. For programs on DVD, consider the following:
DVD drives can read both DVD's and CD's.
CD-ROM drives can read only CD's.
If multiple disc drives (e.g., CD-ROM and CD-RW, or DVD and DVD-RW, or CD-ROM and DVD-RW, etc.) exist on the computer that can read the disc (refer to the items under Step 2), insert the CD or DVD into the other drive and try the program again.
If you are attempting to install a program and the installation does not begin after inserting the CD/DVD into the proper drive, refer to the program's instructions for the installation procedure.
Clean the CD/DVD in the following manner:
Place a small amount of nonabrasive liquid soap on the shiny side of the CD/DVD.
Using your fingertips and warm water, gently rub the soap on the CD/DVD in a circular motion.
Rinse the CD/DVD thoroughly and dry it using a clean, soft T-shirt or lint-free towel. (Do not use paper towels or tissue paper.)
Try to use a different CD or DVD in the drive to see if that disc can be read.
If possible, insert the problem CD or DVD into the DVD or CD drive of another computer to see if the issue persists.
It looks like from error codes that yoi may have a hardware error, or a disk format problem, if this is only burning problem you have on pc and it worked before, then uninstall and reinstall Nero, info gathered from here, http://www.isobuster.com/help.php?help=305
sense code 5 ASC 2c= 5 / 2C / 00 COMMAND SEQUENCE ERROR
5ASC2700=5 / 27 / 00 WRITE PROTECTED Please give good rating if this helps you or points you in right direction, thanks
You may be using the wrong type of DVD format. Some DVD-ROMs and players will only read certain discs. i.e. DVD+R, DVD-R, DVD-RAM. If you are trying to read a DVD-R disc that was bought blank, and then had things burned to it, it may be that the disc wasn't finalised after burning. You could always try updating the Firmware version by downloading it from the website.
Every CD is burnt. If it reads for instance original installation CD's or audio CD's than the problem isn't in DVD ROM but either in a type of DVD (-R,+R...) or the problem is caused due to fact that DVD wasn't closed after burning on another computer.
Check that the writable DVDs you are using are compatible (+/-) with your Sony DVD-RAM.
Go to Windows Explorer and check to see if the Sony drive is visible. It may not be connected or the Jumper switch may be set incorrectly.
Check you have drivers installed, take a look in Hardware manager.
Sometimes, it's a little difficult to copy CDs and DVDs when you have more than one burning suite installed - for some reason, they 'just don't get along'. Try uninstalling any suites other than Nero.
Or it may just be that your Sony CD-RW drive is just that, and your DVD-RW drive is just that. So it wouldn't be possible to write DVDs on the CD-RW and CDs on the DVD-RW? Though I would assume Nero would detect that and use your hard-drive as temporary storage.
In Nero SmartStart, have you selected the CD or DVD tab to correspond to the project you're burning?