Converting M4B to other formats

Steve Matzura

I find a program calling itself "Free Studio" ( Malware Bytes meowed about the Website, so I took it from its direct download link. MWB didn't seem to care about the download--i.e., it wasn't quaranteened or flagged in any way--so I ask, does anyone know if this program is OK, and if not, what's good to use to convert it to some other file format? Remember, M4B files have other metadata in them, such as track or chapter markups, so if I were to convert this file into something else, I'd like that "something else" to preserve those constructs--i.e., separate the markups into individual files, which it sounds like Free Studio can do.