MPEG4 Modifier is a lightweight tool designed to modify AVI file settings without re-encoding. Perfect for MPEG4 ASP formats, including DivX and XviD, this application allows users to adjust pixel and presentation aspect ratios, update user information, and change interlaced field order. Additional features include adding or removing 'packed bitstream', displaying I/P/S/B-VOP usage details, and detecting QPel or GMC usage. Ideal for video enthusiasts looking to tweak their files efficiently, MPEG4 Modifier offers a straightforward solution for quick and easy video configuration changes.
    

    
    
            
Using MPEG4 Modifier has its ups and downs. The ease of use is great! Yet, I've noticed some quality drops in certain files. It's handy, but I'd suggest proceeding with caution.