I've been editing my project last night, Sony Vegas was already crashing then every now and then but I was able to start it up again and keep on editing.
Now the next day, I can't even open the project because when the loading is on 16% Sony Vegas simply crashes.
Application Name: Vegas Pro
Application Version: Version 12.0 (Build 367) 64-bit
Problem: Unmanaged Exception (0xc0000005)
Fault Module: C:\Program Files\Sony\Vegas Pro 12.0\FileIO Plug-Ins\mcmp4plug2\mcmp4plug2.dll
Fault Address: 0x000000003D3AFD8E
Fault Offset: 0x000000000005FD8E
Fault Process Details
Process Path: C:\Program Files\Sony\Vegas Pro 12.0\vegas120.exe
Process Version: Version 12.0 (Build 367) 64-bit
Process Description: Vegas Pro
Process Image Date: 2012-09-14 (Fri Sep 14) 11:31:36
I've been looking for a solution all day now, and nothing seems to work.