I am not a lawyer but to my reading it says there was a dispute involving Apple Inc., but the offending software was withdrawn from the "Mega Codec Pack" and the removed part has to be downloaded separately.
"K-lite Mega Codec Pack
In the past, the K-lite Mega Codec Pack combined the contents of K-Lite Codec Pack Full, QuickTime Alternative and Real Alternative. However, The QuickTime Alternative support was discontinued on June 5 2007, because of legal threats from Apple Inc. Now QuickTime content is played through ffdshow
Therefore, the K-lite Mega Codec Pack currently combines only the contents of K-Lite Codec Pack Full and Real Alternative (QT Lite is provided only as a separate package)".