Ooh OK, that's interesting then. I didn't recognise Roxio as being affiliated with Media Manager, I must admit (but I am using a slightly older version of DTM whose Media Manager doesn't carry the Roxio name). Sorry for the confusion there.
The encryption (when using device key) will tie in the device's specific details with the data on the media card, so theoretically the files can only be accessed from that device. With mine when using Media Manager, I can see all the .rem files on the media card and copy them over to the desktop (which will decrypt them and make them accessible on the PC). Mass storage mode won't work, as the files when extracted from the device will still be in an encrypted state.
I'll try the newest version here and let u know how it goes.
EDIT: WOW that's swelled! The previous version I had (base 4.2) is ~45MB... this one's a 231MB download! I hope it works after this
Adam.