Sorry, we should have added a little more explanation at the first answer. Firstly, you might want to know about ImPlaybackSourceToolkit, so we suggested to see the first link (https://doc.developer.milestonesys.com/html/index.html?base=mmtkhelp/index.html&tree=tree_2.html ). The link explains Toolkit Shelf which contains ImPlaybackSourceToolkit (ImToolkit ← ImSourceToolKit ← ImPlaybackSourceToolkit) and we assumed that you might want to understand it from its introduction because it definitely is very helpful.
Also, you said that you don’t know what the ‘actual data’ is, so that is why we provided a link which explains what the data is. The explanation of the link contains data overview, header and row byte data (actual data). I hope these explanations help you.