7 lines (6 with data), 252 Bytes

m085a 0 128 0 10:13:00 07/03/1991
# Start time=10:13
# First beat=10:19:49.796
# <age-range>: 40-44, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.484,  <RR-high-limit(sec)>: 1.023
# Note: recording with a timing signal, flutter-compensated