sfsherrill

I have a Sony MZ-R30. This weekend I was recording a lecture with a mic. Everything appeared to be normal during the recording. The recording light was on and all the correct indications were in the window. However, when I pressed the stop button after the lecture was over, the "Toc Edit" message did not appear as usual. Instead the window went blank. I pressed play to see what was on the disk and I got a "BLANK DISK" message. My question is this. Is there data on that disk even if the Toc Edit did not occur and can that data be recovered somehow?