Q1: Are there maybe some firmware updates available?
Q2: Which software packages could recover the lost data?
My recordings are long, typically 45 to 60 minutes. Sony RCD-W100 keeps writing all the time but in the end fails to read and/or write PMA contents to the lead-in TOC. However the audio IS there but none of it is available 
> Which software packages could recover the lost data?
thur far none has proved to do the job
firstly it proves to be difficult to read the contents of a failed recording. Secondly: my old laptops do not have the space and power to handle 700 MB files. In my job I have better computers
there should be some cloning software packages, which make a 1:1 disk file image of a cd. Then I must make an empy recording of the same length and have a disk image of it as well. Combining these two images maybe gives me a recovered image. (Taking just the very first blocks of the empty recording, the rest being the recovered audio. Ther won't be any lead-out ... )
for this combining of images I write a C-language program
Finland
