Pretty much explained in the title..say I have to burn 70 minutes of audio onto a CD-R or a CD-RW, with the current burner I have it takes about 30 minutes...
no program is going to make that much a difference. You burn speed is limited by you drive. However there may be a firmware update available for you burner which may increase the burn speed. Have a look on the manufacturers web site
Yeah, the speed is all dependent on your drive itself, unless your computer is just struggling that hard to go full speed... But, a good free burning program is DeepBurner. No speed difference, but it hasn't failed me yet...
If you want it just to burn audio the itunes is a good burner, although i doubt this will help with your speed problem, though anything is worth a try if you really want to speed it up