AVI File Types

taliesin wrote on 7/26/2002, 12:51 PM

I know this has been discussed before a lots of times. I did a research in this forum but couldn't find a definite answer to what we do discuss in a german forum right now.

Base should be the facts:
AVI 1.0 is what describes an AVI version which is limited by a certain file-size which could be 2 or 4 GB.
AVI 2.0 (also called OpenDML 1.02 compatible) has no file-size limitation and AVI 2.0 is what VegasVideo uses when capturing dv-data.
If I render clips with VV I can choose both AVI 1.0 or AVI 2.0.

AVI Types are completely different to the AVI-versions mentioned above.
AVI Type 1 contains one single stream which consists of one part video and one part audio.
AVI Type 2 contains two streams and the audio stream is to be stored twice there. This makes an AVI Type 2 Video-for-Windows compatible but at the same time it encreases the data size because of the second audio stream.

Now what is the AVI Type which will be used in VegasVideo when capturing dv???
I thought it would be AVI Type 1.
Now a friend of mine tested this on his system. He usually uses MediaStudioPro for editing. If he imports a VV captured file into MSP it says it's an AVI Type 2.
Is it possible he chose some "wrong" settings in VV so it really does capture to AVI Type 2???
If so what are those settings, I only can find some render settings specifying to AVI 1.0 or AVI 2.0 but no capture settings to make an AVI file Type 1 or Type 2.

How can I proof what file type it actually is?

Thanks for any hints, comments, etc.

Marco

Comments

jetdv wrote on 7/26/2002, 1:08 PM

Marco,

My understanding is that VV captures AVI Type 2. This is also the same choice I make when capturing with Scenalyzer to get unlimited size captures and those captures work great with VV.

Also, if you go back to Cinestream, it will only see the first TWO Gigs of an AVI Type 2 file and will only see the first ONE Gig of an AVI Type 1 file.

Edward

SonyDennis wrote on 7/31/2002, 5:08 PM

Vegas captures and renders to AVI DV Type 2
///d@

taliesin wrote on 7/31/2002, 5:21 PM

This is something mixed up very often. I was confused about it.

Thank you both for the clarification!

Marco

John_Cline wrote on 7/31/2002, 8:29 PM

While it is indeed true that AVI v2.0 doesn't have a filesize limitation, it should be noted that the file system in use does have its limits. Fat16 has a 2 gig filesize limit, FAT32 has a 4 gig filesize limit and, for all practical purposes, NTFS is unlimited. Well, the limit is around 12 terabytes, but until 12 terabyte drives or drive arrays are common, it isn't going to be an issue.

John