Pruitts

Is there a way to set tracks to editable again? I have a funeral service that was recorded on mini-disc with an RH-1. One track doesn't transfer with SonicStage, and gives an error that it is unreadable. It is the pastor's message, and the family would really like to have a CD made of the service. The track is 8:01, and can be played up to 7:50 before it skips to the next track. If I could set a track mark at 7:50 I would have most of the message, but because we've tried to transfer it with Sonic Stage, editing is blocked. Any help would be appreciated. Steve