convert flv to vob

[Franz Waldmüller]

Hi,

I want to convert a recorder flv-video to a vob-video.

I am not very familiar with flv and vob files, yet. I am looking for a 
conversion which leaves as many settings/codecs as possible unchanged. I 
just need a vob file to create a video-dvd.

I studied the man pages of ffmpeg a little bit and came up with this 
command. But I think this command can be improved, ffmpeg-expert willing 
to help?
ffmpeg -i test.flv -s 720x404 test.vob

Below is the output of rtmpdump (which I used to record the video stream
INFO:   duration              3113.03
INFO:   moovPosition          32.00
INFO:   audiocodecid          mp4a
INFO:   width                 720.00
INFO:   height                540.00
INFO:   videocodecid          avc1
INFO:   avcprofile            77.00
INFO:   avclevel              30.00
INFO:   aacaot                2.00
INFO:   audiosamplerate       44100.00
INFO:   audiochannels         2.00
INFO:   videoframerate        25.00
INFO: trackinfo:
INFO:   length                137284608.00
INFO:   timescale             44100.00
INFO:   language              eng
INFO: sampledescription:
INFO:   sampletype            mp4a
INFO:   length                77813000.00
INFO:   timescale             25000.00
INFO:   language              eng
INFO: sampledescription:
INFO:   sampletype            avc1
INFO:   length                137288704.00
INFO:   timescale             44100.00
INFO:   language              und
INFO: sampledescription:
INFO:   length                280126800.00
INFO:   timescale             90000.00
INFO:   language              und

more info on the input flv-file (output of ffmpeg):
Seems stream 0 codec frame rate differs from container frame rate: 50.00 
(50/1) -> 25.00 (25/1)
Input #0, flv, from 'test.flv':
   Duration: 01:18:18.55, start: 0.000000, bitrate: N/A
     Stream #0.0: Video: h264, yuv420p, 720x404 [PAR 1:1 DAR 180:101], 
25 tbr, 1k tbn, 50 tbc
     Stream #0.1: Audio: aac, 44100 Hz, stereo, s16

Thanks for any help.
Franz