In a time where internet bandwidth is still a big problem for most people it is comforting to know that the videos provided by StudyMagix are really very small.

We can keep you busy for a very long time with technical explanations and comparisons between video-formats, but it would be much more self-explanatory to simply illustrate it using some examples.


The Khan Academy is known internationally for facilities similar to what we are offering here. They make use of YouTube, however, and create their videos by using screen recording software, before posting it to YouTube. We took a standard video from the Khan Academy Youtube channel, and downloaded it to see the file size. Click here for the video on YouTube.


The size of the video (in flv-format) of Garfield's proof of the theorem of Pythagoras:
8min 55 seconds
12.8MB
With our own software (smf-format which plays on this website and the TeachMe program)
7min 39 seconds
1.3MB
We went even further, and converted our own video to avi-format, to see how big it will be if we want to keep the same quality (remember that our videos are High Definition (HD)), but we compressed it with Microsoft Video1 Codec
7min 39 seconds
133.6MB
Then we also converted it to mp4-format:
7min 39 seconds
12.2MB
Things started getting interesting now, and we decided to perform a few more experiments, amongst others to see how big the file would be if we didn't use any compression at all ('uncompressed"), and we made a video of Long Division.
In our own format
3min 29 seconds
0.64MB
In Video1 Codec
3min 29 seconds
50.5 MB
In mp4-formaat
3min 29 seconds
4.29MB
Without compression -
pure High Definition avi
3min 29 seconds
759.8MB
It is too big to upload, but click here for a picture of our screen confirming this
You should see clearly that the quality of the videos provided by StudyMagix, weighed against the sizesm are totally unique in the worl of videos and screen recorders, and it will definitely not use up a month's worth of Bandwidth in one afternoon, nor even the full month.

As further confirmation, and proof that we are not "cooking" the data, we made a further video and converted it into Video1 Codec avi-format, as well as mp4-format. You can download it from here if you want to investigate further conversions, i.e. 3gp to see how far you can shrink the files, and to compare qualities in the process.
Volumes of prisms
740KB
6.9MB