If you’re using the 64-bit version of Lightroom, you’ve probably noticed the lack of support to burn your images directly to CD. There is a pretty ugly workaround if you really need this feature. When you install Lightroom on a 64-bit OS, the installer recognizes your system and chooses to install the 64-bit version of the software. Nice if you’re a novice but not so nice if you really need the Burn-to-CD feature to work.
The reason why the built-in burning feature doesn’t work in the 64-bit version is because the third-party library Adobe used for disk burning on Windows, did not have a 64-bit version!
The workaround is simple. Just reinstall Lightroom BUT use the 32-bit installer instead. To find the 32-bit installer, look in your extracted installer package, in the “Adobe Photoshop Lightroom 2.0″ folder, for a file called “setup32.exe”.
The 64-bit version of Lightroom is optimized for computers with 64-bit processors. In short terms that means if you’re using the 64-bit version of LR on a 64-bit OS, the software should be more stable and work faster. Consider this before you reinstall to the 32-bit version though it might be slower.
If you can live without the built-in CD burning feature, you still can use Vista’s own burn feature. Just export your images to a folder on your computer. Open the folder including the exported images and press the “Burn icon”.