backups now taking forever??

[izzy181]

hi, i got a nec nd-2500a. been running great with no probs. done plenty of backups using dvd decrypter and dvd shrink (latest versions) of both. i usually check for latest versions before i backup a dvd. got latest winxp updates too. it used to take me say 20-30 minutes or so to backup/burn dvd. about 1-2 weeks ago the last 5 dvd's have taken anywhere from 1-2 hrs to backup. in the last couple of weeks i have updated winxp updates (couple of security ones) and shrink had a new version too i installed, these are the only new programs that have been installed. also still using the same discs ive always used "Memorex DVD+R 8x" using nero oem 6.3.1.10

just curious if anyone else had noticed or had the same problems.