Out of Sync audio involving 12 - 16 bit HELP!!!!

Dear Apple Community,
I recently video taped my brothers wedding on my Canon PAL MV700i mini DV. Little did I know I recorded in 12 bit audio, which ive learnt is bad(ive now changed over to 16 bit). When capturing onto Final Cut Express I did so in 50 minute blocks. When re-playing this the audio was out by like 2 seconds. My first question is, is my footage un-editable because it was recorded in 12 bit? or does changing the setting before capturing fix it? (because i did this but it still was out of sync) Furthermore, when i capture in small portions, like 2 minutes, the audio is in sync? and this was the footage that was previously captured in the 50 minute section but WAS out of sync? Does the length of the capturing effect the audio?
Lol anyone got any ideas?

Sorry to be a pain mate, but I captured for only a minute and the audio was 2 seconds out. Ive changed the audio to 16 bit but nothing seems to be working. At the end of the capture this window pops up: "The audio sample rate of one or more of your captured media files does not match the sample rate on your source tape. This may cause the video and audio of these media files to be out of sync. Make sure the audio sample of your capture preset matches the sample rate of your tape."
Any ideas?

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Hi @DannyOhm ,
You would need to restore you Windows back to factory settings on your Notebook. Here is a document that will help do this.
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Out of Sync audio involving 12 - 16 bit HELP!!!!

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