Thanks to both of you. I have already tried unchecking the "convert to WAV" feature and it didn't do any good. I have Audacity on my laptop but no sound card, so I'll have to do this on my other machine. It's just going to take a really, really long time. In the meantime, I'm picking up a colleague's MD recorder tomorrow, which is newer, and will put in my disc to see if it's the unit itself. Hopefully it will upload. The tracks I'm trying to upload are only 3-5 minutes long each. We tracked each one as it was read, both to keep it organized from the start and to keep the uploads small. I'll come back tomorrow and let you know if the other MD worked. thanks!