One of the most asked questions is in regards of black borders on the video, and how to get rid of them.

I received a question in regards of merging split avi files into a single video file so that it could be converted into a 1-file movie.

Asked a few times directly by email, as well as on Droid Forums, I figured, it would help to document some things on the site.

Star Trek, Transformers 2 and a few others have a more severe DVD protection system than others. This protection system (Made by Sony, called ARCCOSS) usually creates fake tracks (up to 99) on the DVD, and in some cases scrambles the scene order to trick DVD conversion tools such as DVD Catalyst. These DVDs also [...]

The next update (3.83.6) of DVD Catalyst will have a few profiles for this device included, however, if you want to convert your DVDs or Movies to a format for your N900, you can use the profile for the HTC Touch Pro2.
The specifications for video files are the same, H264 video at 800×480 resolution.

With a lot of talk about the Verizon Droid, I decided to make a few sample videos to show differences in quality.
For the source, I picked a 720p version of the trailer of the recently released  2012 movie, and I converted this using the 2 Droid presets. Because of the many scene-changes, I did both [...]

PDATopSoft is running a special with DVD Catalyst 3.
Purchase for $20 (or more) on your favorite software there, and get DVD Catalyst 3 as a bonus for free ($9.95 value).
The offer lasts until November 16, 2009
link

For some reason, DVD Catalyst might get flagged by a few virus scanners as something infected. This is a false positive.

The wife asked me to edit some recordings she had saved on her TiVo to make some room.

For great looking video on the Nokia E90, use the following:
Select iPod Video (Fast)
click on Modify
change the screen resolution to
800×352
The resulting files will play fine and look great on the Nokia E90