Greetings,

Many moons ago I ripped one of my late fathers DVDs, created by a 3rd party, to a Lagarith AVI with MP3 Audio for "cleaning up" at a later date.

That later date has arrived and I've started looking at one of the files today in MS2025 and it's soooooo slooooow to load and almost impossible to edit; MS seemingly pondering every frame before it decides whether to apply the edit or not. Lagarith and MP3 is no stranger to me, although I do normally use PCM audio. However that's irelevent.

Thinking that it's odd, I wondered if the AVI was corrupted in some way so loaded it into Avidemux, which seems to be able to re-create some timing (or something anyway) and "repair" AVI's, and using copy for both video and audio created another AVI.

I tried the resulting file in MS2025 and it was soooo sloooow again.

Loaded the original into another converter (Pazera Video to AVI), again using copy for everything, I created yet another AVI.

The resulting file played perfectly in MS2025 and editinf flew as usual.

Aha I thought and compared Mediainfo's for the "Good" and the "Bad" and apart from a few bytes they were identical.

Hmm I thought and as I was contemplating what to do next while drinking a cup of tea I noticed, in Windows Explorer" that the "Bad" file had a grand sounding MP3 S16 2.0 and the "Good" file had a rather common MP3 2.0.

I decided it was the S16 bit that was the problem. I looked it up and wished I hadn't. From what I can gather an MP3 S16 2.0 seems to be an MP2 that can't decide what it wants to be or something like that.

Can someone please put me out of my misery and explain the difference between the 2 MP3s I have and, more to the point, why MS2025 doesn't like one of them.

I would also be interested on theories why a direct copy in Avidemus apparently fails to correct it but a direct copy in Pazera succeeds but that's probably a piece of string question.

Thanks in anticipation.

AndyW

edit - ps I think I used Virtualdub for the rip but would'nt like to put too many pennies on that.

edit 2:-

The left is the "bad" original and right is the "good" remux