- First "Best of" album; it is part of a duo, the other album RANGE was released simultaneously.
- One million sales have been recorded for both albums ORANGE and RANGE together.
- This album brought up sales for "Champione" and ИATURAL for the first time since they were released; it also increased overall Orange Range album/single sales.
- ORANGE is the "techno and rock" side of Orange Range, while RANGE is the ballad side.
- It was advertised as the "5th Anniversary Album", but the band's major debut was in 2003, which is four years ago from the time this album was released. Furthermore, the indies era started in 2002, which is over five years ago from this album's release. Either way, the five year anniversary is incorrect.
- Yamato's credit on this album is listed as "Won't you make a basketball team with me? + Forget about my hair, what am I to you!! VOX". This credit is listed for both albums.
- All songs on this album have been remastered. The album was also re-released in Blu-spec CD format on September 9, 2009.
- Purchasers of both albums simultaneously would receive free Orange Range goods such as the "Range Bag".
- It should be noted that besides "UN ROCK STAR", every song on both albums is recorded from the album it came from unless otherwise specified.
- Onegai! Señorita (Album Version) (お願い！セニョリータ; Please! Lady)
- Locolotion (ロコローション)
- DANCE2 feat. Soy Sauce
- Kirikirimai ~Album Ver.~ (キリキリマイ)
- ZUNG ZUNG FUNKY MUSIC
- UN ROCK STAR
- Michishirube ~a road home~ (ミチシルベ; Sign Post)
- * ~Asterisk~ (Album Version) (＊~アスタリスク~)
- yumekaze (Dream-Wind)
- Иatural Pop
- Champione (Album Version) (チャンピオーネ)
- SP Thanx
- Ikenai Taiyou ~Short Ver.~ (イケナイ太陽; Bad Sun)
Notes on each track (number corresponds with track)
- 11th single. The last song the band produced with Katchan before his departure.
- 6th single.
- 4th song in ORANGE RANGE; the song was the CM theme for a Pocky commercial.
- From 1st Contact and the album version of the 1st single. This was Orange Range's major debut single.
- Coupled with 5th single; from album musiQ.
- From 1st Contact. This song incorporates reggae.
- From Иatural, this song is one of Orange Range's most recognized hard rock songs.
- 14th single. In this album, the single version is recorded as opposed to the album version.
- 5th single. First single to reach No.1 on Oricon.
- 10th single. The sales of this single after this album reached higher than initial sales.
- From Иatural.
- From Иatural; on the poster, the title is capitalized for some unknown reason.
- 13th single.
- From musiQ.
- 17th single. This song is the short version, or "TV Size", from the TV drama opening it was used in.