Agent GFX

I'm on XP SP2 and have been for quite a long time

I have the following minidisc players: - Sony Net MD Walkman MZ-N505 Type R - Sony Net MD Walkman MZ-N510 Type-S About 3 years ago i stopped using them both and gave them to a friend. The other day i asked for the MZ N510 back to borrow to listen to some music. I plugged it into my PC, and used the sonicstage software that came with it to record an album to a minidisc that had a few songs still on it from years back. The new songs recorded fine, but when i listened to them, they were going double the speed and were very jittery, and strangely, the songs that were already on the disc from years ago played fine. I've since tried the minidisc in my other player (the MZ N505) and it does the same thing, so this must mean it's not the players that is the problem? Also, i have tried several other minidiscs, and have tried the most up-to-date sonicstage software, but i still get double-speed jittery recordings. Nothing has changed since i last used the players, i have the same software, the same minidiscs, and as far as i know the players are not broken, so i don't understand why the recording doesn't work all of a sudden. I'd be grateful for any help or just for someone to point to the problem. Thanks in advance.