Boot ISO failes

#1
On a fresh disk I made a 20GB Partition (first on disk) to host ISOs.
With EasyBCD, I added the external ISOs to the BCD.

Booting works fine from the ISOs, but the CDs don't find their own media, to continue.

I managed to do the same on another PC with Linux using grub2, see below.

What am I missing to boot from ISO configured with EasyBCD 2.2?

Code:
C:\Windows\System32>dir h:\
 Volume in drive H has no label.
 Volume Serial Number is 0455-408A

 Directory of h:\

05-Mar-14  14:19    <DIR>          NST
05-Mar-14  01:12       473,733,120 systemrescuecd-x86-4.0.1.iso
05-Mar-14  02:12       602,079,232 ubcd529.iso
05-Mar-14  12:36       925,892,608 ubuntu-13.10-desktop-amd64.iso
05-Mar-14  14:21           267,032 ANG0
05-Mar-14  14:22           267,028 ANG1
05-Mar-14  14:22           266,994 ANG2
               6 File(s)  2,002,506,014 bytes
               3 Dir(s)  19,443,843,072 bytes free

 Directory of H:\NST

05-Mar-14  14:19    <DIR>          .
05-Mar-14  14:19    <DIR>          ..
05-Mar-14  14:21             9,216 AutoNeoGrub0.mbr
05-Mar-14  14:22             9,216 AutoNeoGrub1.mbr
05-Mar-14  14:22             9,216 AutoNeoGrub2.mbr
               3 File(s)         27,648 bytes
Code:
There are a total of 3 entries listed in the bootloader.
Path: H:\Boot\BCD

Default: ubuntu-13.10-desktop-amd64
Timeout: 10 seconds
EasyBCD Boot Device: H:\

Entry #1
Name: ubuntu-13.10-desktop-amd64
BCD ID: {default}
Device: boot
Bootloader Path: \NST\AutoNeoGrub0.mbr

Entry #2
Name: systemrescuecd-x86-4.0.1
BCD ID: {217868b1-a469-11e3-a45f-005056c00008}
Device: boot
Bootloader Path: \NST\AutoNeoGrub1.mbr

Entry #3
Name: ubcd529
BCD ID: {2676aba4-a469-11e3-a45f-005056c00008}
Device: boot
Bootloader Path: \NST\AutoNeoGrub2.mbr
Code:
menuentry "SystemRescueCd (isoloop)" {
        loopback loop /systemrescuecd-x86-2.5.0.iso
        linux (loop)/isolinux/rescuecd isoloop=systemrescuecd-x86-2.5.0.iso setkmap=de_CH
        initrd (loop)/isolinux/initram.igz
}

menuentry "UBCD 5.2.1" {
        linux16 memdisk iso
        initrd16 ubcd521.iso
}

menuentry "GRUB4DOS (Ultimate Boot CD)" {
     linux16 /grub4dos/grub.exe --config-file=/grub4dos/menu.lst bigraw
}

menuentry "System Rescue CD (other drive)" {
        linux /sysrcd/rescuecd subdir=sysrcd setkmap=de_CH
        initrd /sysrcd/initram.igz
}