I was also able to open the OGG file with GoldWave.
I can open an OGG that I created with Audacity.
At the source it says “426 kbps” - but in Windows Explorer, it says “1536 kbps”… dunno!
Windows is WRONG! Windows also gets the OGG file I created wrong.
MediaInfo confirms it’s an OGG file and it reports a bitrate of 500kbps.
There are 8 bits in a byte so 426 kilo_bits_ per second is 53 kilo_bytes_ per second. 35 kilobytes per second X 293 seconds is 15.6MB which is close to the actual file size.