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  3. GBAJE0400690
Back in the Day album cover

ISRC

GBAJE0400690

Back in the Day✓2

Megadeth
matched
Released 2004-09-13

Last verified: August 17, 2026

GBAJE0400690 is the International Standard Recording Code (ISRC) for the recording “Back in the Day” by Megadeth, released 2004-09-13. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-904685309-2. Written by JAMES JASON POYSER, JOY GRAND, PAT VIBAS, and others.

Format

GBCountry
AJERegistrant
04Year (2004)
00690Designation
Country:
ISO 3166-1 alpha-2 country code (GB).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2004):
Last two digits of the reference year (2004). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCBack in the Day
ISWCBack in the Day
IPIJAMES JASON POYSER

Musical Work (ISWC)

T-904685309-2Back in the Day

People also ask

What is the ISRC for "Back in the Day" by Megadeth?+
The ISRC for "Back in the Day" by Megadeth is GBAJE0400690.
Who wrote "Back in the Day"?+
"Back in the Day" was written by JAMES JASON POYSER, JOY GRAND, PAT VIBAS, AUDRIE MAGGET, RASHAD SMITH. The ISWC for this composition is T-904685309-2.
What is an ISRC and what does it tell you?+
An ISRC (International Standard Recording Code) is a 12-character ISO 3901 identifier that uniquely tags a specific sound recording. The first two characters are the country code, the next three are the registrant (label or distributor), the next two are the year, and the last five are a unique recording number.
Is the ISRC the same as the ISWC?+
No. The ISRC identifies a specific recording, while the ISWC identifies the underlying musical composition. GBAJE0400690 is the ISRC for this recording; T-904685309-2 is the ISWC for the composition it is a recording of. One composition (ISWC) can have many recordings (ISRCs) — originals, remixes, live versions, and covers each get their own ISRC but share the same ISWC.

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What is ISRC GBAJE0400690?

GBAJE0400690 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Back in the Day” by Megadeth. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.

This recording is linked to the musical work T-904685309-2, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.

Learn more about ISRCs · Powered by Notes.fm

Who wrote this song?

JAMES JASON POYSERComposer
IPI: 00333998132
JAJAPO MUSIC OriginalPublisherIPI: 00339286043
SONGS OF PEER, LTD. RightsAdministratorIPI: 00337211392
JOY GRANDComposerLyricist
PAT VIBASComposerLyricist
AUDRIE MAGGETComposer
RASHAD SMITHComposer
IPI: 00185204576

Who publishes this song?

JAJAPO MUSICOriginalPublisher
IPI: 00339286043
SONGS OF PEER, LTD.RightsAdministrator
IPI: 00337211392

Which contributors are credited?

0000 0000 3670 9717James Poyser

Identifier Graph

ISRCGBAJE0400690ISWCT-904685309-2IPIJAMES JASON POY…IPIRASHAD SMITHISNIJames Poyser

MLC Song Code

B1518J
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

Related

Other versions of this workView all on iswc.fm

Back in the Day

Megadeth

GB5KW1800220
BACK IN DA DAYUSASN1810312

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Songwriter profiles

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GBAJE0400690 is the International Standard Recording Code (ISRC) for the recording “Back in the Day” by Megadeth, released 2004-09-13. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-904685309-2. Written by JAMES JASON POYSER, JOY GRAND, PAT VIBAS, and others.

Megadeth