My-Setting Files Format

This document explains the file format of the following Rekordbox My-Setting files:

• DEVSETTING.DAT

• DJMMYSETTING.DAT

• MYSETTING.DAT

• MYSETTING2.DAT

My-Setting File Structure

The My-Setting files of Rekordbox are made up of a file header, a body structure containing the main data and a file footer. In contrast to the analysis files the My-Setting files use little endian data types.

The files start with a single byte len_strings specifying the combined size of the string data fields (should be always 96). The next 3 bytes are always zero. The first 4 bytes can also be interpreted as a little endian 32-bit integer. After that the My-Setting files contain three 32 byte long ASCII strings. The first 32 byte field brand contains the name of the brand. The value seems to depend on the file:

File	Value
DEVSETTING.DAT	PIONEER DJ
DJMMYSETTING.DAT	PioneerDJ
MYSETTING.DAT	PIONEER
MYSETTING2.DAT	PIONEER

The next 32 byte long field software describes the name of the software. The value seems to always be “rekordbox”. The last string in the file header is version, which describes some kind of version number. The last value of the header is len_data, which describes the size of the data data in bytes. The total length of the header is 104 bytes.

The My-Setting files end with an 4 byte long file footer, which contain a 2 byte checksum and an 2 byte unknown value, which seems to always be 0x00. The checksum is calculated over the contents of the data field, except for DJMSETTING.DAT files where the checksum is calculated over all preceding bytes including the length fields and uses the CRC16 XMODEM algorithm [1].

My-Settings File Body

After the file header of the My-Settings files the main data begins. The format depends on the kind of file. All settings are stored as enums, starting at the value 0x80 = 129. Note that even integers are not stored directly but mapped to the enum values, for example 0x80 -> 1, 0x81 -> 2, etc. Sometimes the enum values are shifted by one: 0x81 -> 1, 0x82 -> 2, etc.

MySetting Body

The payload of the MYSETTING.DAT file is 40 bytes long and contains the main settings for Pioneer audio players (CDJ’s).

MYSETTING.DAT data body

Byte	Name	Description
1-8		Usually b"xV4\x12\x02\x00\x00\x00"
9	on_air_display	0x80 = off, 0x81 = on
10	lcd_brightness	0x81 = one, 0x82 = two, …, 0x85 = five
11	quantize	0x80 = off, 0x81 = on
12	auto_cue_level	See encodings section
13	language	See encodings section
14		Usually b"\x01"
15	jog_ring_brightness	0x80 = off, 0x81 = dark, 0x82 = bright
16	jog_ring_indicator	0x80 = off, 0x81 = on
17	slip_flashing	0x80 = off, 0x81 = on
18-20		Usually b"\x01\x01\x01"
21	disc_slot_illumination	0x80 = off, 0x81 = dark, 0x82 = bright
22	eject_lock	0x80 = unlock, 0x81 = lock
23	sync	0x80 = off, 0x81 = on
24	play_mode	0x80 = continue, 0x81 = single
25	quantize_beat_value	0x80 = one, 0x81 = half, …, 0x83 = eighth
26	hotcue_autoload	0x80 = off, 0x81 = on, 0x83 = rekordbox
27	hotcue_color	0x80 = off, 0x81 = on
28-29		Always 0
30	needle_lock	0x80 = unlock, 0x81 = lock
31-32		Always 0
33	time_mode	0x80 = elapsed, 0x81 = remain
34	jog_mode	0x80 = cdj, 0x81 = vinyl
35	auto_cue	0x80 = off, 0x81 = on
36	master_tempo	0x80 = off, 0x81 = on
37	tempo_range	0x80 = six, 0x81 = ten, 0x82 = sixteen, 0x83 = wide
38	phase_meter	0x80 = type1, 0x81 = type2
39-40		Always 0

MySetting2 Body

The payload of the MYSETTING2.DAT file is 40 bytes long and contains additional settings for Pioneer audio players (CDJ).

MYSETTING2.DAT data body

Byte	Name	Description
1	vinyl_speed_adjust	0x80 = touch_release, 0x81 = touch, 0x82 = release
2	jog_display_mode	0x80 = auto, 0x81 = info, 0x82 = simple, 0x83 = artwork
3	pad_button_brightness	0x81 = one, 0x82 = two, …, 0x84 = four
4	jog_lcd_brightness	0x81 = one, 0x82 = two, …, 0x85 = five
5	waveform_divisions	0x80 = time_scale, 0x81 = phrase
6-10		Always 0
11	waveform	0x80 = waveform, 0x81 = phase_meter
12		Usually b"\x81"
13	beat_jump_beat_value	See encodings section
14-30		Always 0

DjmMySetting Body

The payload of the DJMMYSETTING.DAT file is 52 bytes long and contains the main settings for Pioneer mixers (DJM).

DJMMYSETTING.DAT data body

Byte	Name	Description
1-12		Usually b"xV4\x12\x01\x00\x00\x00 \x00\x00\x00"
13	channel_fader_curve	0x80 = steep_top, 0x81 = linear, 0x82 = steep_bottom
14	cross_fader_curve	0x80 = constant, 0x81 = slow_cut, 0x82 = fast_cut
15	headphones_pre_eq	0x80 = post_eq, 0x81 = pre_eq
16	headphones_mono_split	0x80 = stereo, 0x81 = mono_split
17	beat_fx_quantize	0x80 = off, 0x81 = on
18	mic_low_cut	0x80 = off, 0x81 = on
19	talk_over_mode	0x80 = advanced, 0x81 = normal
20	talk_over_level	See encodings section
21	midi_channel	0x80 = one, 0x81 = two, …, 0x8F = sixteen
22	midi_button_type	0x80 = toggle, 0x81 = trigger
23	display_brightness	0x80 = white, 0x81 = one, …, 0x85 = five
24	indicator_brightness	0x80 = one, 0x81 = two, 0x82 = three
25	channel_fader_curve_long	0x80 = exponential, 0x81 = smooth, 0x82 = linear
26-52		Always 0

DevSetting Body

The DEVSETTING.DAT file is not yet understood well. Its payload is 32 bytes long.

Encodings

The auto-cue levels in the MYSETTING.DAT files are encoded as follows:

Auto-cue level encodings

Value	Name
0x80	minus_36db
0x81	minus_42db
0x82	minus_48db
0x83	minus_54db
0x84	minus_60db
0x85	minus_66db
0x86	minus_72db
0x87	minus_78db
0x88	memory

The languages in the MYSETTING.DAT files are encoded as follows:

Language encodings

Value	Name
0x80	english
0x81	french
0x82	english
0x83	german
0x84	italian
0x85	dutch
0x86	spanish
0x87	russian
0x88	korean
0x89	chinese_simplified
0x8A	chinese_traditional
0x8B	japanese
0x8C	portuguese
0x8D	swedish
0x8E	czech
0x8F	hungarian
0x90	danish
0x91	greek
0x92	turkish

The beat jump beat value in the MYSETTING2.DAT files are encoded as follows:

Beat jump beat value encodings

Value	Name
0x80	half
0x81	one
0x82	two
0x83	four
0x84	eight
0x85	sixteen
0x86	thirtytwo
0x87	sixtyfour

The talk-over level in the DJMMYSETTING.DAT files are encoded as follows:

Talk-over level encodings

Value	Name
0x80	minus_24db
0x81	minus_18db
0x82	minus_12db
0x83	minus_6db

References

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[1]

Jan Holthuis. rekordcrate. Module setting https://holzhaus.github.io/rekordcrate/rekordcrate/setting/struct.Setting.html