They are partially re-mastered.
For example, absent in Block Rockin 'Beats the introduction and the sound is clean. And that's what I feel as a disadvantage, because it is precisely in 'Dig Your Own Hole' produces the dirty sound a certain attraction.
Really interesting is the bonus CD.
It contains:
1. It Does not Matter
2. Do not Stop The Rock
3. Under The Influence
4. Freak Of The Week
5. It Began In Africa
6. Hoops
7. Acid Children
8. Saturate
9. Electronic Battle Weapon 9
10. Midnight Madness
The remixes of tracks 1 to 6 were unknown to me.
The tracks 7 to 10 were completely unknown to me.
The whole comes in a cardboard box dinky.
Fans should strike when the album for a moderate price from well below EUR 20.- is to have.
Newcomers I would rather the 'singles 93-03' recommend, since the compilation of tracks is something interesting and comprehensive.