Panasonic released a firmware update for their S1 / S1R cameras: V1.5: av.jpn.support.panasonic.com/support/global/cs/dsc/download/index4.html
1. Expanded media compatibility
– Prograde Digital CFexpress Type B card can be used.
2. Other added functions
– 50p/25p video frame rate option is available on all LUMIX S1 cameras including models for the NTSC broadcast format regions (Japan, North America, Republic of Korea, Taiwan, Republic of the Philippines).
3. Change of operating specifications
– To prevent improper operation, touch-control is disabled for [Delete All] operation in playback mode. Only cursor buttons can be used for [Delete All] operation.