I recently needed to convert about 600 mp3s to ogg. I decided give the task to Sound Grinder, because it was one of the few programs for mac that would do the conversion directly (without having to go to .aiff first)

Installed the program, dragged the folder of mp3s into it's window, set it to ogg, hit convert. Easy enough, time for bed.

Upon waking, I found a error message over the conversion window. Uh oh. "Outout format not supported" Huh? Whatever, I hit "okay"

Then comes the bad news. Turns out this "error" occurred 16 files into the batch, and all other conversions had ceased until I manually hit "okay".

And, I put error in quotes because the erroneous file, was fine. It produced a complete and playable ogg. So what exactly was the problem?

So yeah, I had to babysit the entire conversion. As, this glitch happened about 50 more times. Tip for the developer, if an error isn't fatal, have the process continue and generate a report afterwards. Nobody wants to babysit long batch conversions. It defeats the whole purpose.

Many hours later, after the conversion completed, I had 600 ogg files, with no id3 tags!!!! The didn't carry over to the converted files! That's a bit of an oversight, ain't it?

So, I drag my folder of untagged oggs and Sound Grinder into the trash. Sorry. This can be done much more painlessly on a Linux box. Which I ended up doing.

To it's credit, Sound Grinder has a clean, easy to use interface. And the converted files, sound great. But until these issues are fixed, I can't recommend it.