What kind of videos can I put on my phone?

Anyone? Surely this phone has to be able to play videos, its video quality is so good

Download Format Factory 2.20 

http://www.formatoz.com/

Direct from their site:

Format Factory is a multifunctional media converter.
Provides functions below:
All to MP4/3GP/MPG/AVI/WMV/FLV/SWF.
All to MP3/WMA/AMR/OGG/AAC/WAV.
All to JPG/BMP/PNG/TIF/ICO/GIF/TGA.
Rip DVD to video file , Rip Music CD to audio file.
MP4 files support iPod/iPhone/PSP/BlackBerry format.
Supports RMVB,Watermark, AV Mux.

Format Factory's Feature:
1 support converting all popular video,audio,picture formats to others.
2 Repair damaged video and audio file.
3 Reducing Multimedia file size.
4 Support iphone,ipod multimedia file formats.
5 Picture converting supports Zoom,Rotate/Flip,tags.
6 DVD Ripper.
7 Supports 50 languages

OS requirements: All 32 windows OS



I use the "all to mobile" 320 x 240 MP4 output. 

From the source: HTC .com's Spec sheet for the Hero at...
http://www.htc.com/www/specification.aspx?p_id=283

Display    3.2-inch TFT-LCD touch-sensitive screen with 320x480 HVGA resolution
Video supported formats    MPEG-4, H.263, H.264 and Windows Media® Video 9

* Up all night trying to figure out if its that I need a better Video player APP or I'm not converting my AVI files into MP4's properly, but I still haven't been able to get and play a Movie I converted and Saved to my MicroSD card on my Hero (Sprint).
I trialed the following APPs...
- Albums (OEM)
- Media Player (Trial)
- Meridian (Free)
- aPlayer (Free)

1st:
I Converted using 'various' settings with HANDBRAKE with only audio at best, although every convertion file I made I could play on QuickTime. That was misleading!

2nd: I tried BOO5TED's suggetion to use Format Factory 2.20, but
- I tried both the 'MP4 320x240 MPEG4'   and the ''Google 'GX 480x320' since they were the same res. as listed in the Hero's screen Specs. I linked/listed above.

Conclusions:
1. 'Format Factory' worked with both formats. Thanks BOO5TED!
2. I was able to play 'Format Factory' converted videos on all video players listed above.
3. - Media Player (Trial) by BlueMediaLab.com took forever to access SD files. 1 Star
4. - The Video fills the screen Horizontally, but not Vertically.
      I may play with settings and see if I can find a truly 'FULL' screen conversion.
Peace, Scanner Scott

I've been using it for a few years now with no problems at all.