http://en.wikipedia.org/wiki/MPEG-4_Part_14#.MP4_versus_.M4A_file_extensions OR http://tinyurl.com/f4llh And yes, you can convert an MP3 to a WAV file, but the resulting WAV file will not have the fidelity of the original source since some of the audio data was lost during the original conversion to MP3 format. Do a web search for 'MP3 to WAV' without the quotes to see what software is available for this. You might even be able to use Audacity or a similar editor for it. Peace, Gman http://www.bornagainamerican.org "The only dumb questions are the ones we fail to ask" ----- Original Message ----- From: "cristy" <poppy0206@xxxxxxxxxxxxx> To: <pctechtalk@xxxxxxxxxxxxx> Sent: Sunday, February 22, 2009 9:23 PM Subject: -=PCTechTalk=- Re: OE address book > While I have you on the phone Gman ;0, Is an m4a a movie file like an > mpeg, I read it is also referred to as mp4. I am trying to edit a file > for > someone but I am not familiar with that format and cannot even seem to > download it. > > Also trying to recall, can I convert mp3 to wave, I know I can convert > wave > to mp3. > > Thanks, > christy --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To subscribe, unsubscribe or modify your email settings: //www.freelists.org/webpage/pctechtalk To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx To join the PCTableTalk off-topic group, send a blank email to: pctabletalk+subscribe@xxxxxxxxxxxxxxxx ---------------------------------------------------------------