7 lines (6 with data), 253 Bytes

f129b 0 128 0 9:30:00 31/07/1987
# Start time=09:30
# First beat=09:40:31.492
# <age-range>: 70-74, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 1.289
# Note: reel-to-reel recording, not flutter-compensated