There is a PA folder which includes arrival, taxi, welcome etc messages from the FAs, I would like to 'disable' this sounds, renaming the folder will do? or I'm better off creating 'blank' wav's instead for the existing sounds?

The easiest solution is to ensure the PA volume selector is in the full off position. That way you won't hear them.Do not rename any sounds, however, because if FS2Crew looks for the sound and its not there you will get an error message. Best to just create blanks over the existing wavs.Cheers,Bryan