Gonna need more information to be able to help out. Give a few details on this. What burner do you have? What version of Nero are you using? What media are you burning it on? Does Nero detects your burner?
burner-NEC DVD_RW ND-3550A nero version-7.0.1.4 media-memorex CD-RW 4x 700mb 80min Does Nero detects your burner?- yes it does
You have an old version of Nero 7. The latest is 7.8.5.0. Check Nero CD/DVD Speed or InfoTool to find the manufacturer of the 4X CD-RW. It may be Infomedia. Their 4X discs are not as well supported as their faster CD-RW media, but CD-RW are complicated by many other factors as well. If the disc has been recorded already or formatted, it will need to be erased. If you have Ahead/Nero InCD installed, that software will erase and format the disc; but it is essential that you have no other packet-writing/formatting software on your computer or there will be conflicts on your system. (This is a chronic problem with packet-writing software and the reason that the "typical" installation of Nero excludes InCD. The customer has to select "custom" in order to add InCD.) There may be a format already recorded onto the CD-RW if it was inserted into another computer with different packet-writing software. In order to erase the disc, open Nero Burning-ROM, select RECORDER among the choices above, and click on ERASE/REWRITABLE DISC. Erase the disc completely. Then check to see if the disc will work afterwards. (Record in the single session/disc-at-once mode and finalize the disc afterwards. Multisession is often the default selection for CD-RWs and it can cause problems.) My guess is that the problem is lack of support for the Infomedia ATIP code, and you may have to use the high-speed versions instead.
