Hi all, while trying to limit the speed of DVD drives during DVD playback I've come under the impression that GPCMD_SET_STREAMING via SG_IO doesn't yet work with libata/PATA (AMD/NVIDIA PATA support). I tested on an NForce2 board (all IDE, no SATA) and kernel 2.6.22.12. When I use the "old" ATA kernel driver my drive slows down, with libata it doesn't. Is this a known issue or has this slipped by unnoticed? I tried with mplayer dvd:// -dvd-device /dev/sr0 -dvd-speed BTW . I get no errors in syslog/dmesg. Also mplayer doesn't report a problem (so ioctl(fd, SG_IO, &sghdr) doesn't have a return < 0). Regards Sebastian