hy people, I need help, I can't ID this tracks

here are links for 4 tracks, they alltogether have max 4 mb

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if someone ID this tracks, can he put link for that track here or send me on mail

please help

please people, help me !!!!

I findout sometong:

1. marco v - echoes (vision mix)
2. ?
3. Michael Splint feat Sasja - Secrets Broke My Heart (DJ Choose & F Remix) ---> maybe, I am not sure
4. ?

if you have link for this 2 tracks can you please put it here