ros

Hello! First let me congratulate for a great forum. In new in the world of the mini-disc but I love the format... I bought an MZ-RH10 about 6 months ago and worked fine. But now Im trying to transfer and play a large audio file (audio-book) and it transfers OK but it says "Cannot Play". I've tried everything, converting the file to mp3, to wave, to ATRAC, upsampling, downsampling, slicing the file... and I still get that message. Any help? Thank you!