I am using nero version 5.5 as my software to burn CD's, and when I burn CD's I use CD-RW's. When I try to burn an Audio CD at 4x on a CD-RW, it keeps on giving me the error message "Buffer Under Run", it does with, with more than one CD. Can somebody tell me what that means. I have a theory that it means my computer is too slow but I could be wrong. One more thing the CD burner has an 8x Write Speed an 4x Re-Write Speed and an 32x Read Speed. Thank-You

Basically what it means is that your computer is unable to feed data fast enough to the burner. Once the "buffer is empty" the burn is bad. Newer Burners have built-in technology to prevent buffer underrun. Try burning at a slower speed and have nothing else going on at the same time. You are somewhat correct that your computer is too slow, but with some tweaking, you may be able to burn sucessfully with that rig. Try using a CDR disc at a slow burn speed. if necessary, you may have to copy the music files to a temp file on your computer HD and burn from there.

Your theory that your computer is to slow is about right. Buffer Underun means that the CD is trying to write data faster than the computer can provide it. When writing to a CD using ISO 9660, the CD requires a constant supply of data. If the write buffer is emtied faster than the computer can fill it, you get buffer underun. Using CD-RW all you need is to reformat the disk and try again. With CD-R you have what is know as a shiny coffee coaster. Once you start writing a CD it is a continuous process and has to finish without error. It cannot pause and carry on where it left off like a magnetic disk. More modern CD drives have mechanisims to overcome this problem. You could try lowering the write speed to 2x and see if that helps. 200 mHz is really a bit slow for burning CDs. CPUs of that speed pre-date CD Writers. Stuart