the adjustdurationbeforeplayback of member -- If this property is TRUE, MpegXtra will scan the MPEG file and adjust the duration of member property as soon as the sprite starts playing. This is necessary because different MPEG decoders may report different durations for the same clip. If this happens when you take your finished product to a machine with a different decoder, the Xtra may not reach certain cuepoints or it may consider that the end of the file was not reached. Depending on your scripting this can prevent your movie from operating correctly, so this setting should be enabled in the majority of cases.
Example: set the adjustdurationbeforeplayback of member 1 to TRUE
the cpuboost of member -- MpegXtra® can slow down Director to allow more CPU time for the DirectShow driver. This can be useful if you are experiencing poor or stuttering playback. Legal values are in the range of 0 to 95 percent, although values over 40 may result in problems with the performance of your Director animation and/or Lingo event detection.
Example: set the cpuboost of member 1 to 50
the loop of member -- indicates whether the linked Media file will loop automatically. Possible values are 0 (FALSE) or 1 (TRUE).