PC hangs while copying to CDRW

I am copying files to a CDRW for backup purposes. It works fine w/ small files (.xls, .doc., etc.) but the whole system hangs on large files after showing about 9 progress bars (325 MB Outlook .pst file for exampe). Copying files to the CDRW via DirectCD works fine with small files but has the same problem w/ large files. I have tried copying many small files together that total 200MB and it hangs about half way through the process (more then 9 progress bars).

I am going to try readjusting the virtual memory page size to a larger amount (currently at 192MB), but am looking for answers to this in case that doesn’t resolve it. This is a win2000 PC and am using Roxio Easy CD Creator 5.

Thanks
Troy