Does converting avi 1 to avi 2 lose quality?

Answer Best answer as chosen by user Net_name

Subject answer is Yes.

by R. Proffitt - 5/21/12 8:23 AM

In Reply to: Does converting avi 1 to avi 2 lose quality? by Net_name

1. Since direct stream copy means no change in avi encoding, then you have to go deeper with the answer. In fact you have to reveal what is AVI 1 and 2.

Since AVI is nothing more than a container and there is no version 1 and 2 I think this discussion falls apart fast.

2. Try the apps you found, test and see if it works for you.
Bob

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Please try again.

by Net_name - 5/21/12 6:05 PM

In Reply to: Subject answer is Yes. by R. Proffitt

AVI has two formats. AVI 1 which is video and audio combined. AVI 2 is video and audio separate, please know for sure before you claim something on this forum to un-knowledgeable people. Why would you say yes if you believe AVI 1 and AVI 2 does not exist?

Source: http://msdn.microsoft.com/en-us/library/windows/desktop/dd407250%28v=vs.85%29.aspx

Also, your answer for number 2 was very unhelpful.

Sorry to be rude, but I just wanted to point that out to you.

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That's only interleaving.

by R. Proffitt - 5/22/12 11:08 AM

In Reply to: Please try again. by Net_name

So far, no players today differ over interleaving.

I'm only a designer of many electronics things such as DVRs and until you reveal why it matters if we interleave or not I'm going with this discussion is falling apart fast. You need to get in here and reveal what you are trying to do.

For example, one poor soul was trying to knock around an old AVI file to play on their TV without a PC. They had written pages of details but no one would answer since they never revealed what it is they really wanted to do.

On top of that you omitted "DV" from your top post. I can only guess so much and when you omit the details, most will not be able to help.

In closing, one of our DVRs does indeed re-interleave on the fly as it receives AV data. The reason is technical but I'll keep it simple. We do this so the audio keeps better sync when the user jumps to some time index. It's not perfect but usually is within a few frames.
Bob