On Tuesday, March 23, 2010, 11:52:13 AM, Kirk McElhearn wrote: KM> I've never seen a big difference like that. Maybe it has KM> something to do with the fact that the files are 24 bit? Could be. It would mean, then, that Flac is more capable at compressing 24 bit files than Alac. And with more companies offering 24 bit music downloads, it would be interesting to see how Apple reacts to this fact: either by improving it's Alac algorithm or perhaps by including Flac as one of the supported audio formats. -- Best regards, Robert