I have a multimix firewire 16 channel mixer hooked up to my FCP laptop. It always works flawlessly recording 4 channels in iso plus the main stereo mix. This time, however, before the production was over someone turned the power off and the file seems to have been corrupted. I have a file that looks the right size, however there is incredible static in the background. Under it all I can hear some remnants of the production. Can anyone help?