You may see links occasionally posted for a piece of software called "MP4 Converter" This software is garbage. The posts are spam. The folks posting are are bottom dwelling, soul sucking nincompoops.
If you see this software posted - or any other links to "FREE!!!1!" software: Please report the link. Please do not click the link. Do not quote the post to reply. Do not buy the software. Do not taunt Super Happy Fun Ball.
You can do everything that this software does with free tools available online, from a variety of sources. You don't need these dorks and their slapdash (usually Windows only) crapware.
Spam sucks. Report it, don't support it.