First pass encoding

[Xor2]

Hi!
What does the size of avi file in first pass encoding depends on?
When i have been encoding films i have always had avi file in first pass up to 4, 5 MB and then in second it creates file with appropiate size (700 mb for one cd), but now i diom;t know why in first pass it shows me that avi file will be more huge then 4 mb almost 1400 MB for two CD. Why ?????????????

[hakko504]

That's because no image data is passed to the AVI file in the first pass. It is only used to collect data on how to perform the second pass. The 4~5MB file you do get is simply the overhead that is in every AVI file. If the data would be written to the AVI file, it would be quite a lot bigger than your desired final size ([1/compression test result] times bigger). Just ignore it, you'll never use the AVI from the first pass anyway.