Question : Problems having mplayer play a dvd

When I type mplayer dvd:// it plays the dvd just fine with audio and video. But when I type mplayer /dev/dvd I recieve

Playing /dev/dvd
RAWDV file format detected.
==========================================================================
Opening audio decoder: [libdv] Raw DV Audio Decoder
Unknown/missing audio format -> no sound
ADecoder init failed :(
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders

Too many video packets in the buffer: (70 in 8400000 bytes).
Maybe you are playing a non-interleaved stream/file or the codec failed?
For AVI files, try to force non-interleaved mode with the -ni option.
Unknown/missing audio format -> no sound
ADecoder init failed :(
*** Try to upgrade /root/.mplayer/codecs.conf from etc/codecs.conf
*** If it still does not work, read DOCS/codecs.html!
Cannot find codec for audio format 0x56444152.
==========================================================================
SDL: Using driver: x11
==========================================================================
Requested video codec family [qdv] (vfm=dshow) not available (enable it at compilation)
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffdv] vfm:ffmpeg (FFmpeg DV decoder)
==========================================================================
Audio: no sound
Starting playback...
VDec: vo config request - 720 x 480 (preferred csp: Planar 411P)
Could not find matching colorspace - retrying with -vop scale...
Opening video filter: [scale]
VDec: using Planar 411P as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 9 -> 8

SwScaler: BICUBIC scaler, from Planar 411P to Planar YV12 using C
VO: [sdl] 720x480 => 720x480 Planar YV12
error pos=64
.....

I would use mplayer dvd:// to play dvds but I also need mplayer to work properly with the program that rips dvds for me (quickrip). In quickrips config it shows:

Paths:
(m) Mplayer:    /usr/local/bin/mplayer
(e) Mencoder:   /usr/bin/mencoder
(t) Tcprobe:    /usr/bin/tcprobe
(v) DVD Device  /dev/dvd
(o) Default output dir: /root

since mplayer  /dev/dvd won't work neither will quickrip.  Just wondering if there was a way to fix that error that mplayer is giving me so that both mplayer and quickrip will be able to work.

Software versions:
QuickRip v0.8
MPlayer 0.90rc5-3.2.3 ( I know its an older version but I get the same errors with even new versions)
2.6.11-1.1369_FC4

Thanks for your help in advance.

Answer : Problems having mplayer play a dvd

You could try changing your QuickRip config file to read "mplayer dvd://" or  "/usr/local/bin/mplayer dvd://"  It might need (single) quotes to pick up the option, but I would try it without any quotes at first.