Comment by chrismorgan

It’s definitely not universal.

A few years back I had a Sony DSC-HX90V (basically their best compact camera), purchased in Australia, that was capped at 20 minutes. (I discovered this by losing most of an hour-long session. I don’t believe this limitation was documented, as I did read its manual and would expect to have remembered that.)

I understand the Sony α6000 generation (mirrorless; α6000, α6300, α6500) had a mixture of limitations: in many situations, around a 20 minute cap due to file system or file format limits, thermal limits that would often shut it down well before that, and a hard limit of “approximately 29 minutes” for unstated reasons I will not speculate on.

The α6100 generation (α6100, α6400, α6600) lacks all these limitations. I purchased one in India. Its battery allows it to record for around 80 minutes, and with power via Micro-USB I’ve recorded for 100 minutes in an ambient temperature of over 40°C on multiple occasions, and five hours once for a test.