Please read the supoprt page: www.nch.com.au/acm/support.html
P. OMA / OMG / ATP files do not load properly / Only the first 1.01 minutes of my OMA / OMG / ATP file gets converted
We only support the older-style ATRAC .wav format, we do NOT support the OMA/OMG/ATP formats, as these have in-built Digital Rights Management (DRM) protection. You need to contact Sony to ask how to convert these files to other formats. As part of the DRM it is only possible to convert the first 1.01 minutes of the file.