I just purchased a MD-8 multi-track recorder and I am having touble recording. I am trying to record mic and studio trax using the dir method. Everything seems to be in order until I stop the recording. When I push the last rec. in and then play nothing happens. I have tried push toc before I try to play it back but it doesn't help. The play buttton flashes and that's about it. I can insert a pre-recorded mini and it plays fine. I am new to this piece of equipment and need advise desprately.