Unix指南/解釋/光碟
這會將CD音軌中的音訊複製到一個檔案中。對於某些驅動器（沒有模擬連線到音效卡的驅動器），這是正確播放檔案的唯一方法。
首先，您應該對CD裝置具有讀寫許可權。（您可以成為root來讀取CD，但隨後您必須將檔案“chown”回給您自己。）
首先檢視您的CD裝置節點。在*BSD上，它們位於/dev/cd*和/dev/rcd*。如果它們看起來像這樣
$ ls -l /dev/cd* brw-r--'--- 1 root operator 3, 0 Nov 1 16:26 /dev/cd0a brw-r--'--- 1 root operator 3, 2 Nov 1 16:26 /dev/cd0c brw-r--'--- 1 root operator 3, 16 Nov 1 16:26 /dev/cd1a brw-r--'--- 1 root operator 3, 18 Nov 1 16:26 /dev/cd1c
這裡，root需要授予使用者讀寫許可權。我們決定將使用者新增到“wheel”組。一旦他們加入，我們更改裝置的組並授予該組讀寫許可權。
$ sudo chgrp wheel /dev/cd* /dev/rcd* $ sudo chmod g+gw /dev/cd* /dev/rcd* $ ls -l /dev/cd* brw-rw--'-- 1 root wheel 3, 0 Nov 1 16:26 /dev/cd0a brw-rw--'-- 1 root wheel 3, 2 Nov 1 16:26 /dev/cd0c brw-rw--'-- 1 root wheel 3, 16 Nov 1 16:26 /dev/cd1a brw-rw--'-- 1 root wheel 3, 18 Nov 1 16:26 /dev/cd1c
在讀取音軌之前，我們必須插入CD。
例如，這裡我們讀取音軌2並將其儲存在song.wav中。我們的“.wav”字尾是因為這是cdparanoia的預設格式。當CD在
$ cdparanoia 2 song37.wav
許多系統都提供eject命令。
$ eject cd0
場景：將名為backup的目錄的內容放到CD中。
這裡我們以root身份進行實際燒錄（和彈出）。使用者需要具有“sudo”訪問許可權，但不需要對CD裝置節點有任何特殊訪問許可權。
建立CD的磁碟映像。我們將其命名為burn.iso.
- -R是ISO6990 Rock Ridge支援
- -r是Rock Ridge，但所有檔案都位於根目錄下（可在具有不同使用者的計算機上使用）
- -hfs表示混合ISO9660/HFS磁碟
$ mkisofs -o burn.iso -r -hfs backup $ chmod a-w burn.iso
將其掛載以檢查有效性。（NetBSD/OpenBSD）
$ sudo vnconfig /dev/svnd0c burn.iso $ sudo mount -r -t cd9660 /dev/svnd0a /mnt $ diff /mnt backup $ echo $? 0 $ sudo umount /mnt $ sudo vnconfig -u /dev/svnd0c
儘管file具有誤導性，但檔案系統是好的。
$ file burn.iso burn.iso: x86 boot sector, extended partition table
插入空白光碟。
這是一個演示的測試燒錄cdrecord -v.
$ sudo cdrecord -v -dummy dev=/dev/cd0c burn.iso cdrecord: No write mode specified. cdrecord: Assuming -tao mode. cdrecord: Future versions of cdrecord may have different drive dependent defaults. cdrecord: Continuing in 5 seconds... Cdrecord-Clone 2.01 (--) Copyright (C) 1995-2004 Jörg Schilling TOC Type: 1 = CD-ROM scsidev: '/dev/cd0c' devname: '/dev/cd0c' scsibus: -2 target: -2 lun: -2 Using libscg version 'schily-0.8'. SCSI buffer size: 61440 atapi: 0 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'MATSHITA' Identifikation : 'CD-RW CW-8123 ' Revision : 'CA0T' Device seems to be: Generic mmc2 DVD-ROM. Current: 0x0009 Profile: 0x0010 Profile: 0x0008 Profile: 0x0009 (current) Profile: 0x000A Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-2 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Drive buf size : 1731072 = 1690 KB FIFO size : 4194304 = 4096 KB Track 01: data 114 MB Total size: 130 MB (12:58.58) = 58394 sectors Lout start: 131 MB (13:00/44) = 58394 sectors Current Secsize: 2048 ATIP info from disk: Indicated writing power: 5 Is not unrestricted Is not erasable Disk sub type: Medium Type B, low Beta category (B-) (4) ATIP start of lead in: -11834 (97:24/16) ATIP start of lead out: 359849 (79:59/74) Disk type: Short strategy type (Phthalocyanine or similar) Manuf. index: 24 Manufacturer: Sony Corporation Blocks total: 359849 Blocks current: 359849 Blocks remaining: 301455 Starting to write CD/DVD at speed 24 in dummy TAO mode for single session. Last chance to quit, starting dummy write 0 seconds. Operation starts. Waiting for reader process to fill input buffer ... input buffer ready. BURN-Free is ON. Turning BURN-Free off Starting new track at sector: 0 Track 01: 114 of 114 MB written (fifo 100%) [buf 98%] 8.2x. Track 01: Total bytes read/written: 119586816/119586816 (58392 sectors). Writing time: 102.275s Average write speed 7.6x. Min drive buffer fill was 98% Fixating... WARNING: Some drives don't like fixation in dummy mode. Fixating time: 34.457s cdrecord: fifo had 1947 puts and 1947 gets. cdrecord: fifo was 0 times empty and 1860 times full, min fill was 80%. $ echo $? 0
實際燒錄
$ sudo cdrecord dev=/dev/cd0c burn.iso Password: cdrecord: No write mode specified. cdrecord: Assuming -tao mode. cdrecord: Future versions of cdrecord may have different drive dependent defaults. cdrecord: Continuing in 5 seconds... Cdrecord-Clone 2.01 (--) Copyright (C) 1995-2004 Jörg Schilling scsidev: '/dev/cd0c' devname: '/dev/cd0c' scsibus: -2 target: -2 lun: -2 Using libscg version 'schily-0.8'. Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'MATSHITA' Identifikation : 'CD-RW CW-8123 ' Revision : 'CA0T' Device seems to be: Generic mmc2 DVD-ROM. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-2 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Starting to write CD/DVD at speed 24 in real TAO mode for single session. Last chance to quit, starting real write 0 seconds. Operation starts. Track 01: Total bytes read/written: 119586816/119586816 (58392 sectors). $ echo $? 0
我們現在應該彈出已完成的光碟。作業系統或驅動器可能不知道光碟現在在其上有一個檔案系統。
$ sudo eject cd0
如果我們重新插入光碟，那麼我們可以掛載/解除安裝它。
$ sudo mount /dev/cd0a /mnt $ sudo umount /mnt
