The Sony EX1 records video onto memory cards or SxS cards. By default, the camera records in the MXF format, which is a file-based format that is designed for professional video production.
The camera can record in a variety of frame rates and resolutions, but it is possible that the camera is set to split longer recordings into smaller files or “chunks” for easier management and storage. This is a common feature on many digital cameras and camcorders, and it allows you to record long events or lectures without having to worry about running out of storage space on your memory card.
The default file size for these chunks varies depending on the camera model and settings, but it’s usually around 2GB or 4GB, which translates to roughly 12-15 minutes of video footage at 1080p resolution. This means that your two-hour concert would be split into multiple files, each of which would be around 13 minutes in duration.