TSCC Codec? Didn't your screenshot say something different? Like EnSharpen of something? And as Jr.Who mentioned before, what is your exact version of Quicktime? Exact meaning stating the whole version number, like Maya 8.1, not Maya 8. Having the latest version of Quicktime, such as 7.3.1 (this number is made up) for example, may work much better than just 7.