Comment # 7 on bug 1020034 from 
I guess that only the versions 2.28 of libblkid.so from the opensuse Leap 42.2
OSS and update repositories cause the problems not detecting mixed mode CD.

I tested two mixed mode CD with several versions of libblkid.so

Only the versions 2.28 could not detect the datatrack of these CD and reports
that this is an audio CD.
The versions of opensuse Leap 42.1 and opensuse Leap 42.2 tumbleweed work well. 

Here are the results of the tests

libblkid-2.25-18.1-x86_64.rpm (opensuse 42.1 update repository)

Output of blkid

1. mixed mode CD
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sr0: UUID="2003-11-10-09-20-19-95" LABEL="Saga" TYPE="iso9660"
/dev/sdc1: PARTUUID="b01e4df1-01"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"

2. mixed mode CD

/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sr0: UUID="2003-11-05-17-22-00-00" LABEL="Cultures" TYPE="iso9660"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sdc1: PARTUUID="b01e4df1-01"


libblkid-2.28-7.1-x86_64.rpm (opensuse 42.2 update repository)

Output of blkid

1. mixed mode CD
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sdc1: PARTUUID="b01e4df1-01"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"

2. mixed mode CD
/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sdc1: PARTUUID="b01e4df1-01"

libblkid-2.29-2.1-x86_64.rpm (opensuse Leap 42.2 tumbleweed)

Output of blkid

1. mixed mode CD
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sr0: UUID="2003-11-10-09-20-19-95" LABEL="Saga" TYPE="iso9660"
/dev/sdc1: PARTUUID="b01e4df1-01"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"

2. mixed mode CD
/dev/sdb2: UUID="ca11ca5e-6502-4755-b500-28a7ba6d637f" TYPE="swap"
PARTLABEL="primary" PARTUUID="449f180c-72d6-4aa4-9a5f-f6e35858e01a"
/dev/sdb3: UUID="b291571f-7561-40c6-b91f-69f04645b8dd"
UUID_SUB="f373acde-1248-42fc-be8f-c795edf59550" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="51dfb89f-c053-495b-b323-ccb848db2cbb"
/dev/sdb4: UUID="5c7be590-4157-43f8-9443-621d5a93f172" TYPE="ext4"
PARTLABEL="primary" PARTUUID="d75b90be-37ff-4799-8aa3-d0bed67d2cf5"
/dev/sda2: UUID="bd90cc71-1a13-4b38-8c76-fd9e35a101bd" TYPE="swap"
PARTLABEL="primary" PARTUUID="2291bd95-a4f4-4d14-b1ed-6f1db52c5b7f"
/dev/sda3: UUID="da59c449-50c6-46c0-90e4-98cc534fb150"
UUID_SUB="252a9c20-d849-490c-ae3e-f0bfb6e0b082" TYPE="btrfs" PTTYPE="dos"
PARTLABEL="primary" PARTUUID="fd00c289-a61a-4f9a-97d4-02d97cf63510"
/dev/sda4: UUID="c6669ee6-3fe4-4d84-ba79-30b876e91dca" TYPE="ext4"
PARTLABEL="primary" PARTUUID="6caddcf3-afb3-4aa6-a196-74855d37de97"
/dev/sr0: UUID="2003-11-05-17-22-00-00" LABEL="Cultures" TYPE="iso9660"
/dev/sdc2: UUID="3707a293-c43b-4d83-9db0-65844358322e" TYPE="swap"
PARTUUID="b01e4df1-02"
/dev/sdc3: UUID="90690922-531a-4e4c-8b0a-e32b4842fbb0"
UUID_SUB="036cc1e5-7c39-49b6-8f6d-5320028dfeb5" TYPE="btrfs" PTTYPE="dos"
PARTUUID="b01e4df1-03"
/dev/sdc4: UUID="04b8657a-a8e3-4f69-a837-a3946765b2d1" TYPE="ext4"
PARTUUID="b01e4df1-04"
/dev/sdb1: PARTLABEL="primary" PARTUUID="2d12f4ca-1e65-4825-8c90-7e5f04c4d3cb"
/dev/sda1: PARTLABEL="primary" PARTUUID="13b01de7-2084-438c-959b-8ba118aeb172"
/dev/sdc1: PARTUUID="b01e4df1-01"

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