This album features the song, "Soldiers of the Wasteland", which includes the longest guitar solo section on any of their songs. At 9 minutes and 47 seconds, this is also DragonForce's longest song.
Sonic Firestorm was rereleased on 22 February 2010, along with the remastered and remixed version of Valley of the Damned. It also came with the bonus track "Cry of the Brave" which was originally on the Japanese version of the album.
The recording and mixing for the band's 2nd album took place at Surrey's Thin Ice Studios, from 6 October to 10 December 2003. All the guitars were recorded at Herman Li's LamerLuser Studios in London.