A recording apparatus of a helical scan system, including a first video head which records video signals on a magnetic tape when a running speed of the magnetic tape is a standard speed and a second video head which records video signals on the magnetic tape when the running speed of the magnetic tape is approximately 1N of the standard speed, N being an integer larger than 3. A digital counter contains a value which, after digital-to-analog conversion by a DAC, corresponds to a desired trip temperature. For each light source, the light reflector arrangement includes a first reflector configured to receive light from the light source and reflect said light towards a second reflector such that light reflected from the second reflector has substantially uniform luminance observable from a single direction. Flats may be applied to both aperture and the fastener so as to assure an orientation in use wherein the fastener cannot disengage from the pouch.