With DVB-T radio (at least) the live radio is working fine, recording radio is fine (file is produced and plays fine in windows) but playing back the recorded radio does not work.

Reported here by me

http://forum.team-mediaportal.com/mediaportal-releases-315/playback-recorded-radio-not-working-79525/

and also by markius

http://forum.team-mediaportal.com/mediaportal-1-1-0-rc-1-496/unable-play-recorded-dvb-radio-79729/

and confirmed by Ronilse.