| ID | Interpret | Skladba | Album | |
| 1. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection |  |
| 2. | Charles Darwin, M.A., F.R.S. | 06B: Difficulties of the Theory - Part 2 | The Origin of Species by Means of Natural Selection | |
| 3. | Charles Darwin, M.A., F.R.S. | 06A: Difficulties of the Theory - Part 1 | The Origin of Species by Means of Natural Selection | |
| 4. | Arthur Ernest Wilder-Smith | College Lectures - Part 2/3 - Dimension Theory - Time Theory | | |
| 5. | Arthur Ernest Wilder-Smith | College Lectures - Part 2/3 - Dimension Theory - Time Theory | | |
| 6. | Corrado Pensa | 2001-07/05 Difficulties In Life, Difficulties In Practice | 2001-06/30 IMSRC Vipassana Retreat for Experienced Students http://dharma.org | |
| 7. | Mickey Abraham | Pick Stroke Theory Part II | | |
| 8. | Bruce Holsinger | The Gods of Theory and the Work of God: Liturgy in Theory, Practice, and Theory of Practice | | |
| 9. | Charles Darwin, M.A., F.R.S | 07B: Miscellaneous Objections to the Theory of Natural Selection - Part 2 | The Origin of Species by Means of Natural Selection | |
| 10. | Charles Darwin, M.A., F.R.S | 07A: Miscellaneous Objections to the Theory of Natural Selection - Part 1 | The Origin of Species by Means of Natural Selection | |
| 11. | Vaughan Jones | Skein theory in knot theory an | | |
| 12. | George Manville Fenn | 26 - How I Got Into Serious Difficulties. | Bunyip Land | |
| 13. | George Manville Fenn | 26 - How I Got Into Serious Difficulties. | Bunyip Land | |
| 14. | Fracture | 04 - Technical Difficulties | ca340 - Fracture - Fracture | |
| 15. | Hate the Radio | HtR- Technical Difficulties | HtR 4.1 | |
| 16. | Hate the Radio | HtR- Technical Difficulties | HtR 4.1 | |
| 17. | Elizabeth Gaskell | Doubts and Difficulties | North and South | |
| 18. | fenducci | Breathing Difficulties | Sentimental Fools (2000) | |
| 19. | fenducci | Breathing Difficulties | Sentimental Fools (2000) | |
| 20. | Cindy Pattern | Dealing With Difficulties.. | Winter Bible Conference, 2008 | |
| 21. | Evil Avatar | EAR Episode 37: And Now Some Technical Difficulties | Evil Avatar News Radio | |
| 22. | susan smith nash | learning objects and their difficulties | e-learning queen | |
| 23. | Bhante Gunaratana | Difficulties Listening to Dhamma 10.06.06 | Evening Talks | |
| 24. | Bhante Gunaratana | Difficulties Listening to Dhamma 10.06.06 | Evening Talks | |
| 25. | Theophilus Monk | Technical Difficulties Arise | Songfight West Coast Tour 2008 - Spokane, WA | |
| 26. | Common Ground Radio | Cuba Visa Difficulties | | |
| 27. | CrunkRockRadio.com | #44: Tail in Church with Testicular Difficulties | 044 CrunkRockRadio.com | |
| 28. | Pastor Ed Regensburg Faith Community Church | Urban Legends: Difficulties Mean That God's Punishing Me | www.faithcommunity.net | |
| 29. | Hillary Rubin | Podcast #44 - Technical difficulties and Hanuman | Hillary's Yoga Practice Podcast | |
| 30. | Master Teacher | How Can Perception Of Order Of Difficulties Be Avoided? Ep 1 | The Manual For Teachers Of A Course In Miracles Series | |
