You can leave a box checked in prefs and use the old files if you want.
The program does not need them though and I think the only thing you will discover is the ability to save the disk space. You won't notice an improvement in sound by keeping them.

An older system (slower drive and CPU) may benefit in the way of performance (speed of generating), however most systems will not show a difference there either.

It's hard to believe but a lot of ears have agreed.


I do not work here, but the benefits are still awesome
Make your sound your own!