I think I'm with JFlint.... At least on PC. I've tested some recordings.. and I'm watching the folder where the writing is taking place. Nothing is there, then BAM, a 256Mb file appears when I stop recording.
I guess I'm also wondering, what happens if you record for 4 hours straight? Will it suddenly show up with a 15Gb file suddenly? It must be writing somewhere I'm thinking, or using ram, then dumping it I suppose? I'll try a 1 hour - 2 hour recording to see what happens.