IMAQ Create for compressed .avi - cannot open the new file afterwards with IMAQ Open

Hi there,
i hope i'm in the right board.
I recently tried to compress avi-files i collected from various cameras throughout the last years.
At first i used VDub and ffdshow with a FFVH codec - it worked fine as long as i won't try to open the compressed avi using IMAQ Open.
I googled a bit and read a lot in these forums, tried several solutions - none of them worked.
So i gave it a last, let's call it fail-proof, try:
I took the original .avi (uncompressed, openable with IMAQ Open) and used my newly gained knowledge to use LV for the compression work, i chose from IMAQ AVI Get Filter Names the ffdshow Video Codec and built a small read-write for-loop to convert the AVI frame for frame.
All worked fine despite the problem, that i still cannot open the compressed file in IMAQ Open - and i do not know why.
I would be glad to force labview to decode and open the compressed file with a certain codec, but i found no option for this.
Thanks in advance
Markus
P.S.
I'm using LabView 2010 and VAS of 02/2014.

Hello Markus,
have you had a look at this:
Writing a Compressed AVI File with the IMAQ Vision Acquisition Software
Compressing avi files-Discussion Forums
Regards,
eletra

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