what kind of macmini you have?

maybe post a patch ?

what codecs/resolution you use?

what messages are in the console window ?

It's the last macmini (2011) (the best configuration selled on apple store 2,5 Ghz intel with 4gB ram) I use Hd video 1920x1080 quicktime movies with a photojpeg codec (approximately 2 minutes each video) but i need in the patch to use a lot of "read" jit.qt.movie. I use the opengl method to optimize and it works great when i'm not writing/reading sound data at the same time. I would like to use this player and write sound data at the same time and when i do this the video freeze sometimes, nothing in the console windows but finder tell me that max don't answer... I think that the computer or the app don't like to read a lot of different videofiles during sounddata are writed on the hard disk and red to... but i'm not sure... I tried to put video files on an external hard drive and soundfiles on an other and the problem is the same. Have you ever had this kind of problems ?

Thanks...

With this little information, it's hard to make a guess, but one thing you might try is to separate the video and audio sections and run them in two different instances of Max....

Maybe make sure you're not trying to read any of the files that you're in the process of writing to.

I'll try soon your suggestions and come back

thanks for your answers !