Audio from media files becomes corrupted, but video from same files remains fine.

I've been recording footage on a Sony nxcam in AVCHD 1080p 30fps for use in a premiere pro project. After importing the files into premiere they all work perfectly fine, no video or audio issues. I edited an entire narration using only the audio from the media files, and then left my computer for about an hour to get lunch. Upon return, the audio in the files skips huge chunks, and ends about a minute before the video ends, but the video seems unaffected. Deleting and reimporting the files doesn't solve the issue, somehow only the audio in media clips seems to have been severly messed up. This happened again earlier this morning, a media file was working fine, and then suddenly only the audio has huge chunks missing out of it, and the remaining chunks are all bunched together with no gaps so that the audio ends minutes before the video does. Any ideas?

Close Premiere and go to your Media Cache Directory for Premiere. Select ALL and Delete those files. Open Premiere and that project and let it conform again. See if the audio is fine.
Eric
ADK

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+The only files it can play are four songs that were imported before a massive rebuild of the library occurred the next day!+
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OS Name Microsoft Windows 7 Ultimate
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name GIBBY-LAPTOP
System Manufacturer Sony Corporation
System Model VGN-SR26GN_B
System Type x64-based PC
Processor Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz, 2267 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. R1130Y1, 8/28/2009
SMBIOS Version 2.4
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United States
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User Name Gibby-Laptop\Gibby
Time Zone Malay Peninsula Standard Time
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Total Physical Memory 3.97 GB
Available Physical Memory 2.60 GB
Total Virtual Memory 7.93 GB
Available Virtual Memory 6.05 GB
Page File Space 3.97 GB
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Audio from media files becomes corrupted, but video from same files remains fine.

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