Originally Posted by Coyoteous
There are two ways to do it - offsets in your CD burning program or manual extra silence. I used to process incoming media for a replication plant and received masters from all over. Times vary greatly from 0 to 2 or more seconds (not pause gap, but silence after start ID - index 1).
I used to do 20 ms on my work, but after some complaints - I went to 200 ms, then later I went to 333 ms or 25 CD frames (manual, no offsets). Some may think this is very long, but I haven't had a single complaint in hundreds of masters. I also like to have 666 ms or 50 CD frames of actual silence (or dither) at the end of the track.
I do mine all manually. My mastering setup up, without using tape, has an approx. 1/3 of a sec. delay as it passes through all my gear so I just use that. If I'm adding tape, the delay is about 400 ms. I do make sure the audio is muted up until the start of the audio so that the manual offset is digital black.
As Barry says, 333 ms or even a bit more is just fine. It's not long at all. I also add 2 seconds to the end of all my CDs so the listener has a chance to flip back before the CD goes to the next one or stops.