7 lines (6 with data), 252 Bytes

e263b 0 128 0 8:00:00 01/01/1988
# Start time=08:00
# First beat=08:03:31.429
# <age-range>: 65-69, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.718,  <RR-high-limit(sec)>: 1.304
# Note: reel-to-reel recording, not flutter-compensated