When I got my new Bionic last week the salesman took my 16 GB card that I had around 600 pics and 10 vids, and all of my MP3s on and inserted it into the new phone to use.
The stock gallery on the Bionic sucks, and when I open it up, there are two folders.
One for my vids, one for all of the pics.
When the SD card was in my old Droid, I had around 5 custom folders I threw my pics in to get to them quickly to show or email to people.
The stock gallery just mixes all the pics into one big folder.
Fired up Google and was looking for answers, and it turns out the best gallery on the market is free for Android.
https://market.android.com/details?id=com.alensw.PicFolder&hl=en
I installed it a bit ago, and low and behold all of my other custom folders are now showing up at the first screen.
Plus you have the ability to create a new folder anywhere on your phone from the menu, and the new folder will then show up in the gallery list when you fire it up.
It is simply the best gallery app I have seen so far.
The only other way with the old gallery I could make a new folder was to use Astro a very fine file manager app also in the market.
But there are to many steps involved, this QuickPic app does it all for you from within itself.