7 lines (6 with data), 248 Bytes

m080a 0 128 0 10:40:00 30/10/1990
# Start time=10:40
# First beat=10:45:58.507
# <age-range>: 60-64, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.609,  <RR-high-limit(sec)>: 1.054
# Note: reel-to-reel recording, not flutter-compensated