Pro-tools session file with all effects committed or printed, accuratelyreflecting the rough mix.
 
Alternatives to Pro-tools session file:
Individual .Wav Stems that accuratlely reflect the rough mix.
 
** The Stems or Session should reflect your rough mix. 
 
Please submit a Pro-tools session for the best quality master.
 
Alternatives to Pro-tools session file:
You can submit a two track WAV file (Limited based on your previous final mix)