However, on the plus side i've always found the changelogs for firmware updates to be more verbose and informative on the US site. I quite apreciate that. Here's an example:
* Improvements: Write performance on CD-R media
* Compatibility with DVD-R DL media
Date posted: May 13, 2005
* Improved write performance on CD-R media.
* Improved the reading compatibility of DVD-R Dual Layer discs created with this drive on other DVD recorders
The DVD-R DL issue is a bit 'undefined' in the Europe changelog. The US version is a lot more specific to the actual issue.