PCAV, CAV, ZCLV, or CLV?

hello all,

anyone know how to find the particular method used on each speed on different discs without actually burning them?

for instance, on http://homepage2.nifty.com/yss/a10j/DVR-A10-J.htm

TYG02 and TYG03 use different methods after 6x

Is there a utility?

nevermind, i think mediacodespeededit might be able

tks