| Digest Nr | Subject and Author |
 |
| 2026.04.06.01 | FS: Ragtime Automated Music O-roll Orchestrion, from RJ Ingram |
| 2025.10.08.01 | FS: Stafford O-roll Nickelodeon in New Jersey, from Greg Graham |
| 2024.12.25.02 | FS: O-roll Coin Piano in Southern California, from David Dewey |
| 2023.06.08.01 | Seek "Danse Macabre" on A-roll or O-roll, from Robbie Rhodes |
| 2023.06.04.01 | Seek "Danse Macabre" on A-roll or O-roll, from Craig Williams |
| 2023.06.02.01 | Seek "Danse Macabre" on A-roll or O-roll, from Larry Reece |
| 2022.04.22.02 | Seek Gospel Piano Music for O-roll Piano, from Richard Sherborne |
| 2022.04.06.01 | FS: O-roll Nickelodeon in Minnesota, from Larry Reece |
| 2021.07.11.05 | O-Roll Tracker Bar Description, from Dale F. Rowe |
| 2021.07.08.03 | Seek O-Roll Tracker Bar Description, from Cecil Dover |
| 2021.06.05.02 | Nickelodeon Piano Co. O-roll Player Piano, from Richard Hanner |
| 2021.01.29.07 | FS Free: O-Roll Build-up Orchestrion in Los Angeles, from Timothy L'Amoureux |
| 2019.11.04.03 | Seek Scott Joplin Ragtime in " O-Roll" Format, from Tony Stratton |
| 2019.05.28.01 | Seek Parts for Build-up O-roll Orchestrion, from Ben Gottfried |
| 2019.03.08.03 | Rebuilding a Build-up O-roll Nickelodeon, from Larry Mayo |
| 2019.03.07.03 | Rebuilding a Build-up O-roll Nickelodeon, from Lance Reed |
| 2018.08.15.03 | Recording Of My O-Roll Buildup Orchestrion, from George Bogatko |
| 2018.07.28.02 | FS: Homemade O-roll Orchestrion in France, from Vincent Thebault |
| 2018.03.17.01 | FS: National Coin Piano & RAM O-roll Orchestrion, from Tim L'Amoureux |
| 2017.11.06.02 | Seek Curtain Regulator For O-Roll Accordion, from Larry Mayo |
| 2017.10.19.02 | New O-Roll Arranged by Steven Kent Goodman, from George Bogatko |
| 2016.12.13.04 | O-roll "Slow Drag Blues" O-673-SKG Music Files, from Kelly Goodman |
| 2016.12.12.04 | O-roll "Slow Drag Blues" O-673-SKG, from Rick Crandall |
| 2016.11.18.05 | FS: O-roll "Slow Drag Blues" O-673-SKG, from Kelly Goodman |
| 2016.11.14.04 | Seek Restorable O-roll Spool Box, from Steven Scott |
| 2016.11.13.04 | FS: O-Roll Frame by Mechanical Systems, Inc., from James Williams |
| 2016.08.02.04 | FS: O-Roll Repair Table, from Tom Hutchinson |
| 2016.02.16.03 | O-roll Music Recordings at Web Page, from Rick Crandall |
| 2015.12.08.02 | FS: O-roll Nickelodeon, Otto Accordion, Faventia, from Paulette Smariga |
| 2014.10.14.05 | "The Riff Song" & Tunes on O-Roll O-815, from Rick Crandall |
| 2014.10.12.03 | "The Riff Song" on O-Roll O-815, from Matthew Schultz |
| 2014.10.12.02 | Coinola O-Roll Rollography, from Rick Crandall |
| 2014.10.09.01 | FS: Definitive "Roaring 20s" O-roll, from Stephen Kent Goodman |
| 2013.05.05.02 | Alternate Instruments for O-roll Orchestrion, from Timothy L'Amoureux |
| 2013.05.04.03 | Seek Multiplex Unit for O-roll Orchestrion, from Jeff Bridges |
| 2012.08.30.04 | FS: O-roll Orchestrion Project in Wales, from Nicholas Newble |
| 2012.03.15.03 | Seek Repair of O-roll Spool Frame, from Marv Garriott |
| 2011.08.03.08 | Seek Rewind Gearmotor for O-roll Spool Frame, from Marv Garriott |
| 2010.07.19.16 | Seek Parts for O-roll Orchestrion, from Mark Greisen |
| 2010.06.13.02 | Converting O-roll Arrangement to G-roll, from Art Reblitz |
| 2010.06.12.02 | Converting O-roll Arrangement to G-roll, from Brian Smith |
| 2010.06.10.02 | Converting O-roll Arrangement to G-roll, from Brian Smith |
| 2009.05.22.05 | Seek "Just Across The Street From Heaven" O-roll, from Stephen Kent Goodman |
| 2009.05.15.11 | FS: Capitol O-roll O-809, from John Mottoros |
| 2008.01.12.06 | O-Roll Tracker Bar Information Needed, from Harald Mueller |
| 2007.09.06.03 | FS: Build-up O-roll Orchestrion in Michigan, from Andrew Barrett |
| 2007.07.30.04 | FS: Player Pianos & O-roll Orchestrion, from Bill Sharkey |
| 2006.05.22.07 | O-roll Spool Frame Dimensions, from Vincent Thebault |
| 2006.05.13.03 | FS: O-roll Spool Frame by MSI, Inc., from Dave Krall |
| 2004.08.10.03 | Coinola Spool Frame & O-roll Expression Controls, from Don Teach |
| 2004.08.01.06 | O-roll Swell & Drum Expression Controls, from Charlie Morgan |
| 2003.06.14.08 | FS: Ellwood Apollo Nickelodeon O-Roll Piano, from Pete Knobloch |
| 2001.11.24.07 | Coinola O-Roll Tracker Bar Scale, from Don Teach |
| 2001.11.23.08 | Coinola O-Roll Tracker Bar Scale, from Don Teach |
| 2001.09.06.06 | FS: Seeburg O-Roll Orchestrion in Mundelein, IL, from Steve McCollum |
| 2001.07.29.07 | New O-roll Music in RealAudio, from George Bogatko |
| 2001.06.14.06 | Seek MIDI Files of O-Roll Music, from Gerry Bay |
| 2001.06.05.04 | A- and O-Roll Paper Speed, from Brian Smith |
| 2001.05.01.08 | A-Roll and O-Roll Paper Speed, from Ken Vinen |
| 2001.04.30.04 | A- and O-Roll Paper Speed, from George Bogatko |
| 2000.12.14.09 | O-Roll Tracking Problems, from Craig Brougher |
| 2000.12.09.01 | O-Roll Tracking Problems, from John McClure |
| 2000.02.15.12 | FS: O-Roll Orchestrion, from Tim Baxter |
| 2000.01.29.05 | O-Roll "A Round-Up of Hits" at Inlux Editions, from George Bogatko |
| 1999.11.10.05 | Restoring Dave Junchen's Christmas O-Roll, from George Bogatko |
| 1999.10.07.09 | "New Chicago" O-roll Music in RealAudio, from George Bogatko |
| 1999.10.01.11 | "New Chicago" as O-roll, from George Bogatko |
| 1999.09.29.15 | FS: "New Chicago" as O-roll, from George Bogatko |
| 1999.07.28.22 | Bushings in Old PPCo O-roll Spool Frame, from Craig Brougher |
| 1999.07.27.13 | Bushings in Old PPCo O-roll Spool Frame, from Bernt Damm |
| 1999.03.15.06 | Mystery O-roll is Composite O-113, from Bill Masterman |
| 1999.03.15.05 | Mystery O-roll Is O-113, from Matthew Caulfield |
| 1999.03.05.12 | Mystery O-roll May Be Incorrectly Spooled, from Don Teach |
| 1998.12.27.05 | O-roll in RealAudio, from George Bogatko |
| 1998.09.14.12 | O-roll Orchestrion Project, from Peter Coggins |
| 1998.04.06.23 | O-Roll Orchestrions, from Bernt Damm |
| 1998.04.04.22 | O-Roll Orchestrions, from Don Teach |
| 1998.04.04.20 | O-Roll Orchestrions, from Fritz Gellerman |
| 1998.04.03.15 | O-roll Orchestrions, from Bernt Damm |
| 1998.04.03.14 | O-roll Orchestrions, from George Bogatko |
| 1998.04.01.18 | O-roll Orchestrion Questions, from Bernt Damm |
| 1998.03.30.26 | FS: O-roll Orchestrion, from Art Reblitz |
| 1997.06.12.12 | FS: O-Roll Machine from Story and Clark Pianos, from George Bogatko |
| 1996.08.09.03 | An O-Roll Emulation, from George Bogatko |
| 1996.03.14.04 | The Mighty O-roll Machine, from Robbie Rhodes |
 |