Dear Jochen, Thanks for your reply, Some files may be played, but for a so short duration that I can hardly hear anything :)) !!! Auditing my mp3 files generates the following report: IDv3 tag missing, various bit-rates : some are CBR, some are VBR. some sampling rate at 32000, some sampling rate at 22050, some in joint stereo, some in 1 mono, all with volume gain set to 0. Futhermore, I noticed that WINE 1.0 provides settings in the Audio tab. Seems like it expects unified mp3 specs, especially for sampling rates. Q1 : Do you have information on the winemp3.acm constrains ? My guess is that one clue could be unify theses specs to a format that works (yet unkown !!!) Could be a lot of work, consequently unsure mainly because of time consumption. Q2 : I've not found how to disable winemp3.acm yet, do you have any clue ? (I'm sorry to ask, I may have missed some point in the wine documentation) Thanks for your support, at least I have an idea where to search ... Bye