I understand that there's a Key for Video Resolution for a Video File... but nowadays there's no multiple audio track download option.
MULTIPLE AUDIO TRACK
USE CASE NUMBER ONE:
For example, if you want to download 20 episodes for Season 1 of Series A, at 1920x1080 with
KEY NUMBER ONE, at 1,5GB per episode, you need 30 GB FREE per audio track.
This season have 15 languages, and that would be 30GB x 15 =
450GB downloaded for only 1 Season of 20 Episodes, wasting Disk Space, Bandwidth, and increasing post-multiplexing time because of the size of the files.
USE CASE NUMBER TWO:
If you want to download 20 episodes for Season 1 of Series A, at 1920x1080 with
KEY NUMBER ONE, at 1.5GB per episode, you need 30GB free.
And the rest of the audio tracks will be downloaded at lower res 480x270 with
KEY NUMBER TWO because you only need the audio file, at 250mb per episode, you need 5GB free per audio track.
1 audio track with full HD video (30GB) + 12 audio track with lower res (5GBx12) =
90GB downloaded.
With use case number two you're:
- Decreasing CDN Provider usage from 450GB to 90GB (360GB less)
- Improving disk space usage from 450GB to 90GB.
- Faster download and post-multiplexing.
CONS for use case number two:
- AS will count your downloads TWICE because you're using two diferent video keys, one for 1920x1080 and another for lower res 480x270