What do they mean?
The BQ and BE OpenType Basic versions correspond to the Berthold BQ and Adobe BE PostScript Type 1 Legacy versions.
What is the difference
The Berthold BQ and Adobe Berthold versions are derived from the same data source and so the character outlines are almost identical. The metrics (spacing and kerning) will differ considerably as the Berthold BQ versions have extended kerning for European languages (German, French, Italian etc.). Other additional benefits of the Berthold BQ versions include:
- The Berthold BQ versions sometimes offer weights and versions not available in the Adobe Berthold versions (e.g. Imago, Bodoni Old Face
- Berthold BQ versions always offer full character sets whereas some of the Adobe Expert fonts have incomplete character sets.
- Some of the most popular Berthold BQ versions include the EURO symbol
Kudos for Illan and Glen for pointing me towards the right direction.