I found a free (GPL) PES viewer at http://www.njcrawford.com/embreader/ (currently Windows only). It includes some incomplete documentation of the PES file format, but much more can be deduced from reading the C# source code (which apparently fully supports #PES0001, which is what most PES files that I've seen are).
I found a free (GPL) PES viewer at http:// www.njcrawford. com/embreader/ (currently Windows only). It includes some incomplete documentation of the PES file format, but much more can be deduced from reading the C# source code (which apparently fully supports #PES0001, which is what most PES files that I've seen are).