playback issues on protools m-powered

[alyssa ann]

I need to do some overdub work for a project a friend of mine is working on, so he sent me each track from his digital performer project as seperate files on a CD. I was able to successfully import them into protools, and they actually do show up as data in each track, but I can't get them to playback. Every time I hit "play" i get an error box that says "DAE Error 9131 was encountered". I am able to get other projects to play back so it's not a problem with the program. the files my friend sent me are SD2 files, and imported into Protools as WAVE files.

Attempt number 17.....

The SD2 files were on cd still, so I tried copying them to my hard drive and then importing them, and now I am getting the error message:
"Assertion in "/Volumbes/Development/vb_cliff/AlturaPorts/PT4_App/Mdie/MacBuild/../Mdie_TrackPlayer.cpp, line 518"