After almost 2 years, I finally got around to trying out the CD writer that came with my PC (which runs on XP). (The CD-R model is by Samsung.) A while back I had picked up some TDK 16X CD-R discs, which is what I used to try to write something (an LP copy) to disc. I kept getting prompted to put in a disc with at least 41 minutes of free space (the length of the album I had copied), no matter how many times I clicked on "retry" or put in a different blank disc. When I would just click "ignore", the write would fail right away. I checked the CD writer's properties in "My Computer" and it showed that the entire disc was full (blue) though it also showed there were 0 used bytes and 0 free bytes. Out of desperation I tried putting in an audio-CD-R (the more expensive type you have to use for stereo based CD recorders). And this worked fine. So I'm wondering, does this mean a CD writer that can't go above 8X speed isn't able to handle a 16X CD-R disc? The discs aren't downward compatible? Or could it be a brand incompatibility or bad batch of discs? I assume it's a speed incompatibility issue but I'd like to verify that before picking up a different batch of CD-Rs. Thanks!