[vdr] How to convert e.g. mp4 to VDRs .ts file?

Dear VDR users,

I try to convert some mp4 files (in different video resolutions) to native VDR .ts files, because I want to access this videos in the very same way, as I am used to do with VDR recordings. (So mplayer-plugin or xinelib-mediaplay is not a solution.)

I had some success with ffmpeg:

ffmpeg -i input.mp4 -f mpegts -vcodec mpeg2video -aspect 16:9 -s 4cif -acodec mp2 -ar 48000 -ab 192k -q:v 1 00001.ts

But there is some "stuttering" and artefacts/dropouts when replaying in VDR (full-featured DVB card)

What is the best way to convert video files to VDR or how to create the same files, like VDR records itself?

Thanks for any help in advance!

Best regards, Stephan.