The 1.2.7 version of QTMarker for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This Mac application was originally created by Tranquillity Base. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software relates to Audio & Video Tools.
From the developer:
QTMarker... Add chapter markers to your movie files that are playable on your QuickTme Player or iPod very easily. It can make multiple chapter tracks in a movie file. One for English, one for French, one for Japanese. The movie file is save as a QuickTme movie (.mov).
You may want to check out more Mac applications, such as ImTOO HD Video Converter, which might be related to QTMarker.