The key is this line: https://github.com/Meticulus/android_device_samsung_venturi/blob/carbon/etc/media_profiles.xml#L92
where it says "duration=60". This file is on the device @ /system/etc/media_profiles.xml.
To change it to say... 12 minutes ( Don't know if there is any upper limit???)
- Make sure that /system is remounted rw.
- Open the file : /system/etc/media_profiles.xml
- Change the line :
Save and reboot.
Now you should be able to do screen recordings up to 12 minutes. Possibly camera video recording up to 12 minutes as well!