Classic Odyssey is the 2.5 studio album by SG Wannabe. It is said that a 1 billion won (₩1,000,000,000) budget went into SG Wannabe's new remake album. It included hits such as "My Heart's Treasure Box" (내 마음의 보석상자). 
When 2005 was over, SG Wannabe was ranked at #1, with over 400,000 copies sold of their 2nd album, Saldaga, and 12th, with 147,047 copies sold of their remake album on the year-end chart. 
 Track listing
 | Title | Lyrics | Music | Arrangements | 
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| 1. | "내 마음의 보석상자" ("My Heart's Treasure Chest") | Lee Ju Ho | Lee Ju Ho | Cho Young Soo |  | 
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| 2. | "비 오는 거리" ("The Rainy Street") |  |  |  |  | 
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| 3. | "꿈의 대화 (R&B Soul Version)" ("A Dreamy Conversation") | Lee Bum Yong | Lee Bum Yong | Cho Young Soo |  | 
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| 4. | "사랑의 썰물" ("Tide of Love") | Kim Chang Gi | Kim Chang Gi | Cho Young Soo |  | 
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| 5. | "유리창엔 비" ("The Rain On The Window", duet with "Ock Ju-hyun") |  |  |  |  | 
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| 6. | "소녀" ("Young Girl") | Lee Jung Han | Lee Jung Han |  |  | 
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| 7. | "이별 아닌 이별" ("A Separation Which Wasn't One") | Oh Tae Ho | Oh Tae Ho | Kim Tae Hyun (mdrdney) |  | 
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| 8. | "사랑과 우정사이" ("Between Love and Friendship") | Oh Tae Ho | Oh Tae Ho | Seo Jae Ha |  | 
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| 9. | "비 오는 날의 수채화" ("Art On A Rainy Day") | Kang In Won | Kang In Won | Cho Young Soo |  | 
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| 10. | "눈물나는 날에는" ("On The Days I Cry") | Yoo Young Seok | Yoo Young Seok |  |  | 
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| 11. | "혜화동" ("Anger East") |  |  |  |  | 
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| 12. | "종이학" ("Paper Crane") | Lee Gun Woo | Lee Bum Hee |  |  | 
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| 13. | "가을사랑" ("Autumn Love") | Min Jae Hong | Min Jae Hong |  |  | 
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| 14. | "단발머리" ("Short Hair") |  |  |  |  | 
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| 15. | "내 마음의 보석상자 (Music Video Edit Version)" ("My Heart's Treasure Chest") | Lee Ju Ho | Lee Ju Ho | Cho Young Soo |  | 
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| 16. | "꿈의 대화 (Acoustic Version)" ("Dreamy Conversation") | Lee Bum Yong | Lee Bum Yong | Cho Young Soo |  | 
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References
  
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| Studio albums |  | 
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| Compilation albums |  | 
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| Extended plays |  | 
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| Related articles |  | 
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| Authority control databases |  | 
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