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Q1: Via change-logs (currently https://windows.lbl.gov/sites/default/files/software/IGDB/IGDBReleaseNotes-88.htm) the history of changes from release 11.5 from 2002 onward is readily available (we may try to write a parsing tool for this for better listing / searchability etc. - if anyone has already done this and is willing to share, please give a heads-up). Older data could be available, however, IGDB probably does not cover the EU market much earlier than 2000.

Q2: The (available) IGDB files are password protected themselves. They must be imported into Optics or Window for access, therefore. Then, the databases are MS-Access. It may be necessary to use older Optics / Window versions for older IGDB files (opening 11.4 w/ the current WINDOW or Optics does not seem to work, thanks Robin!).

Thanks for all the information to Jacob.

Q1: Via change-logs (currently https://windows.lbl.gov/sites/default/files/software/IGDB/IGDBReleaseNotes-88.htm) the history of changes from release 11.5 from 2002 onward is readily available (we may try to write a parsing tool for this for better listing / searchability etc. - if anyone has already done this and is willing to share, please give a heads-up). Older data could be available, however, IGDB probably does not cover the EU market much earlier than 2000.

Q2: The (available) IGDB files are password protected themselves. They must be imported into Optics or Window for access, therefore. Then, the databases are MS-Access. It may be necessary to use older Optics / Window versions for older IGDB files (opening 11.4 w/ the current WINDOW or Optics does not seem to work, thanks Robin!).

Thanks for all the information goes to Jacob.

Q1: Via change-logs (currently https://windows.lbl.gov/sites/default/files/software/IGDB/IGDBReleaseNotes-88.htm) the history history of changes from release 11.5 from 2002 onward is readily available (we may try to write a parsing tool for this for better listing / searchability etc. - if anyone has already done this and is willing to share, please give a heads-up). The actual data seems directly available back to v58 (2017). Older data could be available, however, IGDB probably does not cover the EU market much earlier than 2000.

Q2: The (available) IGDB files are password protected themselves. They must be imported into Optics or Window for access, therefore. Then, the databases are MS-Access. It may be necessary to use older Optics / Window versions for older IGDB files (opening 11.4 w/ the current WINDOW or Optics does not seem to work, thanks Robin!).

Thanks for all the information goes to Jacob.