DMA in SUSE Linux?

Forgive the question of ignorance: Does (SUSE) Linux have this Direct Memory Access (DMA) thing or not? Windows seems to have it, and while I am not saying that Linux should have everything Windows does, I find that accessing optical discs from Linux is somewhat slower than from Windows. -- Tux #395953 resides at http://samvit.org playing with KDE 3.52 on SUSE Linux 10.0 $ date [] CCE +2006-04-04 W14-2 UTC+0530