Re: what to do if mp3s are not sorted right
 

I have just sorted some tracks with numbers, and everything was fine. Can you provide an example with full path ? Like this :
"C:\mp3\David Bowie - Telling Stories (Vh1 Storytellers)\david bowie - telling stories (vh1 storytellers) - 21 - thursdays child.mp3"

I see no problem yet. And what do you mean exactly by "a mess" ?

Re: what to do if mp3s are not sorted right
 

hm, no response from Th3_uN1Qu3.
I believe he has encountered some other problem. Of course I have checked the program but could not find any evidence of the problem described.
All my tests even with crazy filenames with extra characters have not produced anything else than reliable program flow, so I would like to contradict Th3_uN1Qu3's warning and declare this application as working 8)

Didn't see your post till now. :P

I have all my music in one folder on my MP4 to be able to use random mode. After throwing the folder from my MP4 to the program the files were like 02 02 03 (different artists and titles) 06 04 11 07 and so on. Random. :lol:

I've neatly renamed and sorted all my music files now but i'll try to recreate the behavior.

Re: what to do if mp3s are not sorted right
 

02 artist1
02 artist2
03 artist1
would be absolutely correct .. they get sorted alphabetically and the above is an alphabetic ascending order. The numbers are part of the filename and count for the sorting strategy even before the names since they come first. Numbers are part of the "alphabet" (which is ASCII in this case), too.
If you want to have your files sorted by artist you should have renamed them :
artist1 01
artist1 02
artist1 03
artist2 01

and I just don't believe the "06 04 11 07" you said. I don't see a reason an alphabetic sorting would do that.
Please check again now that you know what alphabetic means.