I'm trying to record on a Yamaha MT8X multitrack cassette recorder and when I hit record, it only records for 8 seconds exactly. When I hit play..it plays the tape for 8 seconds exactly then stops. While its playing or recording for these 8 seconds, the stop button becomes useless. I've downloaded the user manual from the Yamaha website and did exactly what it said, but there's no mention about this problem I'm having. Does anybody know how to record for longer than 8 seconds on this thing???