7 lines (6 with data), 248 Bytes

e064a 0 128 0 14:00:00 04/09/1988
# Start time=14:00
# First beat=14:06:16.023
# <age-range>: 40-44, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.539,  <RR-high-limit(sec)>: 1.257
# Note: reel-to-reel recording, not flutter-compensated