ps3 wifi help

[pavilion cooler]

my friend just got a ps3 and the wifi isn't the best on it
does anyone know if u can plug in a USB wifi stick into it and install the drivers some how
im downloading yellow dog linux for it right now but thats 3.5 gb ( 1.8 day download !! ) i kno that mite work seeing how people got USB mouse and keyboards to work on it
but if anyone has done this and got it to work or has found a link let my know
thanks

[pavilion cooler]

ok i decided to go with linux i downloaded yellow dog and tried using nero to burn it to cd i used a 4.7gb DVD cd and nero only seen 2gb on the cd and said it wouldn't fit (ydl being 3.5gb)
would i need to find/buy a new burner software ?
or should i try using a flash driver ?

[vicaphit]

Try another disc, that may be a bad blank DVD.

Sorry, I know nothing about modded PS3s, so I don't know if a regular wifi dongle will work. I know my friend tried one on his unmodded PS3, it didn't work.