This week Apple came out with it’s new iFRAME codec for iMovie.  Now, there has been a lot of confusion as to what this codec is, but there is a great blog post at Discrete Cosine that explains this very well.

As the name suggests, iFrame is just an i-frame only H.264 specification, using AAC audio. An intraframe version of H.264 eh? Sounds a lot like AVC-Intra, right? Exactly. And for exactly the same reasons – edit-ability. Whereas AVC-Intra targets the high end, iFrame targets the low end.

Go to the blog to read more…