Tracklist
| Doubting Heart (Single Mix) | 3:59 |
| Vision | 5:49 |
| Doubting Heart (Retro Disco Remix) | 3:33 |
| Doubting Heart (RƎUNION Extended RƎ-Mix) | 5:36 |
| Doubting Heart (trashpoptERROR Independent Mix)) | 4:06 |
| Doubting Heart (Base Elements Remix) | 3:46 |
| Fear (Base Elements Remix) | 4:01 |
| Doubting Heart (Retro Instrumental Remix) | 3:29 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| DECD05 | digital ENERGY* | Doubting Heart (CDr, Single) | Not On Label (Digital Energy Self-released) | DECD05 | Germany | 2007 |
| DECD05a | digital ENERGY* | Doubting Heart (Club Mix) (10", S/Sided, Single, Ltd, W/Lbl) | Not On Label (Digital Energy Self-released) | DECD05a | Germany | 2007 |
| DEDL05 | digital ENERGY* | Doubting Heart (8xFile, AIFF, Single, RE) | Not On Label (Digital Energy Self-released) | DEDL05 | Germany | 2016 |
| DEDL05 | digital ENERGY* | Doubting Heart (8xFile, FLAC, Single, RE) | Not On Label (Digital Energy Self-released) | DEDL05 | Germany | 2016 |
