Thanks for responding.  Per your suggestion, I just upgraded to latest version, but it has no impact. Yes, these are the only 2 files. I do not think they are corrupted because other people have played them on their macs with Premier. What is odd is that after looking at the forum achives another person had the same audio problem with this format and could not get the sound to play and the advice was to uninstall the program and re-install it.  When I did that, the files played. When I went back later to play the files again they reverted back to silence...no audio. I can see the video but no audio. So, I decided to uninstall and reinstall and same issue plus other problems have again come up like ... When I would place the playhead at a spot on the timeline,and insert or overright sometines it will put the clip in the beginning of the sequence and sometimes not.  But this is secondary right now. I am more concerned about getting the sounds to play on these clips.

Thanks but that is not working eithier. Do you think that I should uninstall and reload again? I am wondering if I keep on doing that, I will be leaving files all over the place since I am removing the program using Windows 7?  Also, is it possible that I have a installation disc that is faulty and How would I know and would Adobe do a replacement?

Where can I go to solve my problems with Premier Pro 6. The program is erratic. My insert commands are erratic. It does not insert the clip at the playhead. The ripple tool is messed up.  I am willing to pay to get all these problems resolved.  Hours of frustration.  Any suggestions. I live in Melbourne Australia. Do I have to contact Adobe in America?  Is there paid support in Australia? Is there an adobe store somewhere? Help.  Paid for something that is just does not work.

Hi Jim,

Are you saying to reformat the hard drive and then reinstall the program?