i recently imported footage from a cf card into my mac using canon's card utility. the audio in the footage was fine when monitored through the canon utility, but partially disappeared when imported into fcp through the add custom path feature under log and transfer- in other words there is audio for the first two mins of the clip once it is in fcp, but for the follows three mins, there's nothing. the audio waveform confirms this. i opened the offending video file in quicktime, and the same problem.
the footage on the card originated from a canon xf100. i am using fcp 7 with a mac book pro 10.6.8.
same thing happened on my desktop, same os, same fcp version