I just picked up a SV-3700 off of eBay, in very good running shape. Doing transfers with it for a friend's collection. Any concerns besides eating tapes? It seems they'll all have that issue in time. I was gonna get a Tascam, but this Panny was priced well below a functioning Tascam DA-30 mkii. Any advice would be appreciated. This is my first DAT recorder. Note: I'm only use the play/rewind functions, going AES out the back to a Sound Devices 633.