Panasonic Viera HDD Playback Jerky...


Standard Member

I recently purchased a Panasonic AX820B TV and have been trying to playback 4K video from a USB3 external hard drive.

The drive plays 1080p content OK, but when I try playing a 4K video with a higher bitrate I get jerky playback. I have tried several hard drives all with the same result.

Normally I would just assume that the drive was not capable of delivering the data fast enough to keep up with playing a high bitrate file. However if I copy the same 4K file to to a USB2 memory stick the video plays OK with no jerky problems!

I assume the memory stick is slower at delivering data than a hard drive and of course USB2 is much slower than USB3, so I am a bit confused as to why this is happening.

Could anyone give me some advice please?

I have found in the past that the soundtrack can sometimes cause problems, so I also tried re-encoding that to a simple stereo stream, but that made no difference to the above.



Distinguished Member
Were the HDD's you tried externally powered?, e.g. had their own power supply and not powered by the TV's USB?

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