OPlayer HD is used to boost your iPad's media abilities,you can also use it to streaming audio and video over HTTP.
OPlayer HD has been rated as "IPHONE APPS Plus Best."
http://www.iphoneappsplus.com/entertainment/oplayer-hd/index.htm
***USB File Transfer is now officially supported!
***Mail app's attachment such as AVI, WMV... can be opened by OPlayer now!
Notes:
-Still using software decoding solution in this HD version, so the video resolution must less than 800*600. otherwise the audio/video will not sync.
-About the video not smooth issue, you can switch off the "skip frame" in the settings page.
Features:
- Play almost any video formats on your iPad. (WMV/AVI/MKV /RM/RMVB/XVID/mp4/3GP/MPG/)
- Play almost any audio formats on your iPad. (MP3/WMA/RM/AAC)
- Support audio/video streaming over HTTP. (through WIFI or 3G)
- Support USB download files by iTunes.(need update iTunes to V9.1)
- Easily wifi transfer to download media files from your PC to your iPad.
- ...