okay, sweet~
I can’t quite tell from the pics if these are mashups or DJ-mixes (probably a mix of both), so I’ll answer both those questions.
mash-ups: artist credit would likely be the mashupper. for example, take The Birthday Girl vs. the Internet by Triple-Q.
therefore, if I read it correctly, disc 1 track 2 would be “Waiting on Beautiful” by “Bergwall”. there is a mashup guideline to add track artists to the recording name (not the track name), but I don’t usually see this actually being done.
DJ-mixes: I just found a seemingly similar release: Global Underground 024: Nick Warren in Reykjavik by Nick Warren. it seems you might credit the original artists in this case. if the track has a title, you can add that before the list of songs. for example, disc 1 track 1 could be:
“Powerpop 2018 (part 1): I Know You (Sultan & Shepard remix) / This is Me (Dave Aude remix) / Tip Toe (Wideboys remix) / Leave a Light On (Offset remix) / Feel it Still (Coldabank remix) / For You (Sam Ourt remix) / Barking (R3wire Vs Alphalove remix) / Strangers (Franky Rizardo remix) / Fine Line (James Hype remix)”
and the track artist would be:
“Craig David feat. Bastille / Keala Settle / Jason Derulo feat. French Montana / Tom Walker / Portugal. The Man / Liam Payne & Rita Ora / Ramz / Sigrid / Mabel & Not3s”
the slashes are according to the Titles guideline I posted above. (I know, it’s a bit of a mouthful, lol)
bonus - remixes: I see a few remixes on there too, and in this case those should be credited to the original artist. the remixer can be added as a relationship.
for example, disc 1 track 8 would be titled “Oh, Pretty Woman (DMC 2018 remix)” by “Roy Orbison”, and of course, add DJ Ivan Santana as remixer
note: you could also standardize “Fe” to “feat.”, provided that’s what it stands for. I know some Picard scripts probably rely on feat. standardization (not 100% sure on that though…). that’s entirely your decision tho~
also, it looks like the Js typo you mentioned might just be part of Roaxx J’s name, lol
now that I see the release, I think you can ignore the ALL CAPS name of UrbanHeadz from this release, as that seems to be a stylistic choice by the designers, considering peoples’ names are ALL CAPSed here too. based on what you said earlier, I’d credit them as UrbanHeadz for this release. entirely up to your judgement tho~