| 2022-08-19 |  Molecular @ Blackness Records @ 2022-08-19 | 1 | Techno (Raw / Deep / Hypnotic) | Walter Contreras - Molecular (Original Mix)7:45 | |
| 2022-08-19 | Molecular @ Blackness Records @ 2022-08-19 | 2 | Techno (Peak Time / Driving) | Walter Contreras - Luar (Original Mix)6:32 | |
| 2021-06-16 |  Hostage @ Ultranza Records @ 2021-05-28 | 4 | Techno (Peak Time / Driving) | Walter Contreras - Start Da Beat (Original Mix)7:30 | |
| 2021-05-31 |  Armor @ Blackness Records @ 2021-05-17 | 1 | Techno (Raw / Deep / Hypnotic) | Walter Contreras - Armor (Original Mix)6:25 | |
| 2021-05-31 | Armor @ Blackness Records @ 2021-05-17 | 2 | Techno (Raw / Deep / Hypnotic) | Walter Contreras - Armor (Andrea Bedoya Remix)7:14 | |
| 2021-05-31 | Armor @ Blackness Records @ 2021-05-17 | 3 | Techno (Raw / Deep / Hypnotic) | Walter Contreras - Armor (Gabenz Remix)5:54 | |
| 2021-05-31 | Armor @ Blackness Records @ 2021-05-17 | 4 | Techno (Raw / Deep / Hypnotic) | Walter Contreras - Armor (JayCamel Remix)7:14 | |
| 2021-05-31 | Armor @ Blackness Records @ 2021-05-17 | 5 | Hard Techno | Walter Contreras - Armor (Sofia Alcon Remix)6:54 | |
| 2021-03-11 |  We Are Dark vol.7 @ Finder Records @ 2021-02-25 | 3 | Techno (Peak Time / Driving) | Walter Contreras - Recognize (Original Mix)8:00 | |
| 2020-09-20 |  Start Da Beat @ Ultranza Records @ 2020-08-31 | 1 | Techno (Peak Time / Driving) | Walter Contreras - Start Da Beat (Original Mix)7:30 | |
| 2020-09-20 | Start Da Beat @ Ultranza Records @ 2020-08-31 | 2 | Techno (Peak Time / Driving) | Walter Contreras - Start Da Beat - Dave Van Guten (Remix)6:43 | |
| 2020-09-20 | Start Da Beat @ Ultranza Records @ 2020-08-31 | 3 | Techno (Peak Time / Driving) | Walter Contreras - Start Da Beat - JG Outsider (Remix)7:20 | |
| 2018-07-16 |  Amazzinga Summer Compilation 2018 @ Mazzinga Records @ 2018-07-02 | 15 | Techno (Peak Time / Driving) | Walter Contreras - Serendipia (Original Mix)7:14 | |
| 2018-02-26 |  Two Years of Techno @ Atopic Muzik Records @ 2018-02-12 | 3 | Techno (Peak Time / Driving) | Walter Contreras - Reckless (Original mix)6:15 | |
| 2018-01-04 |  Underground Collection Vol. X @ ILISHO Records @ 2017-12-21 | 16 | Techno (Peak Time / Driving) | Walter Contreras - Inframundo (Original Mix)7:23 | |
| 2017-11-14 |  Blackness EP @ Finder Records @ 2017-10-31 | 1 | Techno (Peak Time / Driving) | Walter Contreras - Blackness (Original Mix)6:20 | |
| 2017-11-14 | Blackness EP @ Finder Records @ 2017-10-31 | 2 | Techno (Peak Time / Driving) | Walter Contreras - Blackness (Clench Remix)8:02 | |
| 2017-11-14 | Blackness EP @ Finder Records @ 2017-10-31 | 3 | Techno (Peak Time / Driving) | Walter Contreras - Blackness (Sasha Romaniuk,Sopik Remix)7:24 | |
| 2017-06-27 |  RECKLESS @ Atopic Muzik Records @ 2017-06-13 | 1 | Techno (Peak Time / Driving) | Walter Contreras - Reckless (Original mix)6:15 | |
| 2017-04-20 |  Phantom EP @ Finder Records @ 2017-04-06 | 1 | Techno (Peak Time / Driving) | Walter Contreras - Phantom (Original Mix)7:20 | |
| 2017-04-20 | Phantom EP @ Finder Records @ 2017-04-06 | 2 | Techno (Peak Time / Driving) | Walter Contreras - Gray (Original Mix)7:14 | |
| 2017-01-11 |  Underground Collection Vol. 5 @ ILISHO Records @ 2016-12-28 | 24 | Techno (Peak Time / Driving) | Walter Contreras - Its hard to imagine (Rowen X Remix)8:16 | |
| 2016-10-30 |  ADE SAMPLER 2016 @ BlackVogue Records @ 2016-10-16 | 15 | Techno (Peak Time / Driving) | Walter Contreras - Magna (Original Mix)7:52 | |
| 2016-07-13 |  Underground Collection, Vol. 4 @ ILISHO Records @ 2016-06-29 | 23 | Techno (Peak Time / Driving) | Walter Contreras - Alternate (Original Mix)8:18 | |
| 2016-04-13 |  Alternate @ ILISHO Records @ 2016-04-13 | 1 | Techno (Peak Time / Driving) | Walter Contreras - Alternate (Original Mix)8:15 | |
| 2016-04-13 | Alternate @ ILISHO Records @ 2016-04-13 | 2 | Techno (Peak Time / Driving) | Walter Contreras - Its Hard To Imagine (Original Mix)8:00 | |