I'll answer my own question. I purchased a pocketdish av500e and was not able to play back the recordings on my achos av400 (non-pocketdish). I was able to transfer my vip622 recordings onto the av500e but the files are obviously encrypted in a format that the regular archos av400 could not read. The av500e is a bit nicer than my regular av400 but I was waiting to buy the 604 wifi when it comes out. It is very convenient to transfer several recordings via the usb. For HD, you can still record onto the pocketdish the old way but that takes awhile (realtime recording: 2 hour movie = 2 hours recording time)