Guys, while I appreciate your help in this it's just way too complicated and abstract to just play a couple of different levels.
What I mean is, I've had my Caanoo for 2 days now and I still can't play custom levels for Doom.
Going by the example given by Pickle above my presumption is to replace the line:
argswap=./master/,1,doom2.wad,2,%filename%
With
argswap=./master/,1,doom2.wad,2,sid.wad
In the profiles.txt document. Following your example with no technical knowledge. I've done that. Nothing happens. The game doesn't load anymore...
Don't get me wrong, I'm not complaining or getting snippy. It's just I don't believe there should be a learning curve involving text files and specific syntax just to play some levels of a game. It's a Games machine!
It's no good for noobs to the Caanoo (me!) and it's no good for you lot no doubt being asked the same questions time and again that, to you, seem really quite simple but to the noob is just jibberish.
Example: Tell a Martian how to flush the toilet:
Martian: How do I get rid of this poo?
You: Flush the toilet.
Martian: What's "the toilet"?
You: The thing you poo'd in... (Jeez...)
Martian: Ah, so how do I "flush" it?
You (by now rolling your eyes): You pull the lever to the right of the cystern...
Martian (now a little frustrated and embarrassed): Okay, I'm presuming the cystern is the thing above the 'toilet'. Okay, I've pulled the lever. It's now in my hand... now what do I do...?
You: Arrrgghh, Are you stupid or what?!
Martian: ...shuffles off humiliated and buys a Nintendo DS!
The End.