1080p and 1080i are both HD display formats for HDTVs. 1080p and 1080i signals which contain actually the same data. In 1080i every video frame is displayed or sent in the alternative fields whereas in 1080p, every video frame is displayed or sent progressively.

How to convert HD video?
HD video converter is a powerful and easy to use program which can easily convert the HD videos between 3gp, vob, rmvb, rm, swf, flv, mkv, wmv, avi, mpg, dv, mp4, mov, trp, tp, ts, m2ts, mts, etc. it means that it is available to make the conversion of HD videos into common video. It makes HD videos from the common videos. It can also convert HD mkv into mp4. The application also allows you to strip an audio track from the HD videos and then save as amr, ac3, aac, m4a, wma, wav, etc.

• Run HD video converter after installation. Then locate the HD videos which you want to make convert. Batch conversion is also supported, so you may also add many files at same time.
• From a Profile list, choose your target video file. You can adjust the quality of the video files through Settings option.
• Find the destination to save an output video file through “Browse” button
• Click the convert button so that to start high definition conversion and then you will get the specified video file formats after clicking “Open” box.

Best Video Converter Software
WMV to MPEG, AVI to MPEG, WMV to MPEG etc. and supports video formats including MP4, MOV, 3GP, AVI, WMV, RM, MPEG, ASF etc., and audio formats including MP3 WAV, WMA, AAC, AC3, OGG, APE, M4A, etc.
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It supports video formats such as MPEG1, MPEG2, MP4, 3GP, 3G2, AVI, Mpeg TS/TP (for HD Video). It can also convert video to audio formats including WAV, OGG, 3GP, Mp3 and M4A. Convert videos for iPod touch, iPod classic, iPod nano, iPhone, Apple TV, PSP, PS3, Youtube (web), Creative Zen, iRiver PMP, Archos, various video mobile phones and many other digital video and audio players
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