From: Cornwall, UK
As further info, I tried it agian last night.
When copying in Windows Explorer the same thing happened. I cancelled the copy and then got an "illegal operation" type error that shut down explorer.
I then tried using "My computer", opening two windows and copying. This was a little faster and didn't error. What happens is the drive spins-up, the red light comes on for a second, then it spins-down. The repeats. When a large file is copied, it takes a while but once it's written the drive then copies a load of smaller files very quickly.
I was copying a lot of data (500Mb copied onto a CDRW of capacity about 534Mb) in many files large and small, in many directories with lots of nesting. My CDR is Lite-on LTR 12102B and I'm using Win98(2nd Ed).