Hi Larry,
The getContentType method will return whatever mime type is chosen for playback. These include:
application/javascript [VPAID]
application/x-shockwave-flash [VPAID]
video/mp4
video/mpeg
application/x-mpegURL
video/ogg
video/3gpp
video/webm
audio/mpeg
audio/mp4
text/html
application/flash
application/shockwave-flash
text/javascript
image/jpeg
image/jpg
image/png
image/gif
This value is in the VAST response under the 'type' property of the MediaFile element, and you will be limited by the capabilities of your video player.
Let me know if you have any questions.
Regards,
Chris Feldman
IMA SDK Team