It takes less than 1 min. to generate a 320 bar Real Track track.
BTW even though your tracks in RB have been made to regular tracks as long as they are REAL TRACKS you can still regenerate the whole track or just sections.
You can also edit just like a word Processor. Make sure to use the "snap feature" You can cut, copy, paste etc.

ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"