I came across this site by typing in an enquiry regarding file endings. I have been downloading and uploading video files with no problems for some time. Recently I've found that I can't open some of the files because VCL or Realplayer don't recognise the file endings. The file endings I'm referring to are as follows; ROO SFV NFO SRI and SRT. In addition I downloaded Run Lola Run but have not been able to download the English subtitles for it. Can anyone help me? Thanks, boatsman.