Tweaking a Sony HX9V for infinite video recording

This was made possible by ma1co @ github and his OpenMemories-Tweak software.

• enable and set the USB mode in your camera to MTP-mode
• connect the Sony HX9V Cam with its propriety cable port to your computer
• download and run OpenMemories-Tweak (the GUI version v18 worked out of the box) from here: https://github.com/ma1co/Sony-PMCA-RE/releases
• switch to the Tweaks-tab and hit Start tweaking (updater mode) and follow the instructions on your camera by simply confirming with OK
• change the settings as you like

The HX9V is also able to output a clean HDMI signal via its mini-HDMI port. Simply switch to the video recording mode on the mode selection wheel and connect it to a HDMI to USB capture card. . Only while zooming the zoom-bar is visible for a couple of seconds. And for longer streams, in combination with a dummy battery, a Low Battery Warning appears at around 1-2 hours, a simple restart fixes this.

All in all, I was able to get the camera for 25€ on ebay, 12€ for the dummy battery, 5€ for an micro HDMI connector cable and 10€ for a cheap 1080p30 HDMI-USB capture card. For around 50€ you can get a 1080p webcam with 16x optical zoom, unlimited recording in 1080p50 in a small package. You can use it with a powerbank, a 5000mAh one should get you around 3-4 hours of recording.