When using Toon Boom Studio with Mac 10.6 Snow Leopard the following may occur:
Some movie files, even though QuickTime player can open them, contain data that was created using a codec (compressor/decompressor) that is not supported by QuickTime player.
For example, a QuickTime movie exported using the default Animation codec with the Every Keyframe option will NOT play correctly in the QuickTime 10.0 player.
Change the default encoder to H.264.
You may also be able to obtain a plug-in that allows QuickTime player to play these files. See the QuickTime website for more information.
Mac OS X v10.6