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O L Y M P U S I M A G I N G A M E R I C A I N C . ( 8 8 8 ) 5 5 3 - 4 4 4 8

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Using removable memory media can expand the recording capacity of the DM-420. The table below shows the potential recording capacity of the recorder with different sized microSD and microSDHC memory cards.

Recording Mode

Maximum Dictation Recording Time (memory card)

 

1 GB

 

2 GB

 

4 GB

 

 

 

 

 

 

 

 

 

MP3 320 kbps

6 hrs. 30 min.

 

13 hrs. 30 min.

 

27 hrs. 00 min.

 

 

 

 

 

 

MP3 256 kbps

8 hrs. 00 min.

 

17 hrs. 00 min.

 

34 hrs. 00 min.

 

 

 

 

 

 

MP3 192 kbps

11 hrs. 00 min.

 

23 hrs. 00 min.

 

45 hrs. 00 min.

 

 

 

 

 

 

MP3 128 kbps

16 hrs. 30 min.

 

34 hrs. 00 min.

 

68 hrs. 00 min.

 

 

 

 

 

 

ST XQ

16 hrs. 00 min.

 

33 hrs. 00 min.

 

66 hrs. 00 min.

 

 

 

 

 

 

ST HQ

32 hrs. 00 min.

 

67 hrs. 00 min.

 

133 hrs. 00 min.

 

 

 

 

 

 

ST SP

65 hrs. 00 min.

 

135 hrs. 00 min.

 

266 hrs. 00 min.

 

 

 

 

 

 

HQ

65 hrs. 00 min.

 

135 hrs. 00 min.

 

266 hrs. 00 min.

 

 

 

 

 

 

SP

128 hrs. 00 min.

 

267 hrs. 00 min.

 

524 hrs. 00 min.

 

 

 

 

 

 

LP

255 hrs. 00 min.

 

531 hrs. 00 min.

 

1042 hrs. 00 min.

 

 

 

 

 

 

Which recording quality mode should I use?

Different quality modes save the digital record of a signal with different levels of faithfulness to the original sound. The ST XQ and ST HQ modes are recommended for music, drama or interviews that may be made for broadcast because they make very detailed digital records of the sound and use a very wide frequency range.

Lower-quality modes, such as SP (Standard Play) and LP (Long Play), make a less- detailed digital record of the signal and use a narrower frequency range so they will use up the available Flash memory much more slowly. These modes are best used for audio note taking or for recording college lectures or seminars – situations in which large content capacity is more important than high audio quality.

What are the maximum recording times per file?

A maximum recording time per file is set for each quality mode. Even if a recorder’s memory is not exhausted, a single recording cannot be continued beyond the limit.

Maximum Recording Time Per File

Quality Mode

Recording Time

 

 

MP3 320 kbps mode

29 hours, 40 minutes

 

 

MP3 256 kbps mode

37 hours, 10 minutes

 

 

MP3 192 kbps mode

49 hours, 40 minutes

 

 

MP3 128 kbps mode

74 hours, 30 minutes

 

 

ST XQ mode

26 hours, 40 minutes

 

 

ST HQ mode

26 hours, 40 minutes

 

 

ST SP mode

53 hours, 40 minutes

 

 

HQ mode

26 hours, 40 minutes

 

 

SP mode

53 hours, 40 minutes

 

 

LP mode

148 hours, 40 minutes

 

 

Olympus Imaging America Inc.

Page 9 of 14

Last updated on September 24, 2009