not for large batching conversions
This app is most appropriate for converting a small number of files at one time. An album at a time, to be exact. MP3 Gain does not have the capability of maintaining a typical iTunes generated hierarchy when choosing an output target: e.g. the target winds up being the album folder for each converted file. Therefore, to maintain the hierarchy that iTunes, and, a USB port recognizing car stereo might use, the files have to be converted one album at a time to maintain the proper drill down. Probably a 3 week task for my 16GB flash drive of music favorites for my car. Sorry I spent the $2.99.
oldenoughtonobetter about MP3Gain - Audio Normalization