As far as the copy/paste thing is concerned, I've never had that problem; I, mostly, use the CTRL+C/V method. As to the 'not all audio files are compatible', my standard install of Firefox uses Windows Media Player (for most) and any other installed Windows programs (ie. Quicktime, etc.) for any online audio/video presentations. I've not run into this issue either. As far as I'm concerned, IE is dead; the only browser to use is Firefox.