[Phillip Allerholez]

Media Composer 5.5.3 on Mac is only qualified currently for Mac OS X 10.7 and not 10.7.1 or 10.7.2 yet. I don’t think that is the problem though.

Judging by the paths you are showing in the error log, it doesn’t seem to be a valid XDCAM file structure. No sign of the Clip, Sub or any other folders where the clips would normally be kept. Were these files just dragged off of XDCam disks or did you do a copy of the exact XDCAM disk structure wise. If the first issue is the case, then the AMA plugins will not touch these. You need to either get the original XDCam disk and and copy it from the top level or recreate the XDCam structure on your own.