[MEncoder-users] ERROR: scr...

[Gugão]

Hi all, I´m new at mencoder, so i´d like to capture from VHS and after 
recording it to DVD with DVD Author or DVD Styler

Running this script shows me this errors:

ERROR: scr 46.669, dts 5.672, pts 5.705
Pos:   5.5s    160f ( 0%)  28fps Trem:   0min   0mb  A-V:0.000 
[38866:223] A/Vms 8/21 D/B/S 6/0/0
Flushing video frames
Writing index...

BUFFER UNDEFLOW at stream 1, raising muxrate to 6214 kb/s, delta_scr: 71188


sudo nice -n -19 mencoder -v -tv 
driver=v4l2:immediatemode=0:alsa:adevice=hw.0,0:forceaudio:device=/dev/video0:input=0:norm=PAL-M 
-of mpeg -ovc lavc -lavcopts 
vcodec=mpeg2video:vbitrate=9800:vhq:vqmax=31:keyint=30 -oac lavc 
-lameopts cbr:br=80:mode=0 -sws 1 -o output.mpg -vf pp=lb,scale=720:480 
tv:// 

Anyone knows how to solve this ?
Thanks any help