No specific info about version 3.7. Please visit the main page of Convertidor MP3 on Software Informer.
Free MP3 Cutter Joiner is a tailor-made audio cutting and merging tool.
The Audio CD to MP3 Converter lets you convert your songs and audio files
All-in-one MP3 utility to convert, record, combine, split, and edit MP3 files.
Join two or more MP3 files together in several ways with this handy tool.
Ashampoo MP3 Check and Convert a useful tool for analyzing and restoring MP3.
This application allows you to convert your MP4 files into MP3 files.