Anamorhic scaling

I have some videos which have been ripped with wrong aspect ratio. The sources are DVDs in 720x576 PAL and 720x480 NTSC, 4:3 anamorphic. Unfortunately, they were ripped with square pixels, i.e. the display aspect ratio for PAL shows as 5:4, for NTSC 3: 2, both should be 4:3.

Currently, I convert such media for correct display aspect ratio prior to processing with Video AI. Is there a way to correct it in Video AI (no cropping, no letterbox) ?