But you can use Adobe Photoshop (I don't use it because I change the prog system then I can create GIF anymore). Photoshop is very good 'cause it's a professional software so you can create HD Picture
For Free Video to GIF Converter, I use it combinate to Sony Vegas Pro 11, a professional Video Editing Software, I create a little video (30sec max for GIF Converter) in Sony Vegas and I convert it with GIF Converter.
For both of these ways, you can have a very good result in HD quality ^^
2012.07.16 - バンドやろうよ！vol.3 2012.08.21 - Canal City Hakata 2014.06.28/29 - ARENA FESTIVAL DAY 1&2 2014.08.05 - RIJF 2014 2015.04.25/26/30 - HW TOUR 2015 2015.10.21 - TIMM 2016.09.10/17/20/21/24/25 - YELLOW in EUROPE 2016