Can I increase the length of comments for file properties?

I have a number of video, music, and picture files that I like to annotate with sometimes pretty lengthy comments. When I previously used Windows Vista, it seems that I could enter very lengthy comments under the "Details" tab of the file properties, and all of that information would be retained (and displayed in the details folder view). With Windows 7, it appears there is a much smaller maximum field length for the comments that are saved, and anything entered that is longer than that is automatically truncated. Is there a way (possibly a registry modification) that I can enter longer comments?