What is the difference between CDs and DVDs in terms of size? Why do CDs and DVDs fit into each other but not into PCs, which have bigger holes for them? -
![Amazon.com: Gotega External DVD Drive, USB 3.0 Portable +/-RW , DVD Player for CD ROM Burner Compatible with Laptop Desktop PC Windows Linux OS Apple Mac Black : Electronics Amazon.com: Gotega External DVD Drive, USB 3.0 Portable +/-RW , DVD Player for CD ROM Burner Compatible with Laptop Desktop PC Windows Linux OS Apple Mac Black : Electronics](https://m.media-amazon.com/images/I/71B+hYEwQPL._AC_UF350,350_QL80_.jpg)
Amazon.com: Gotega External DVD Drive, USB 3.0 Portable +/-RW , DVD Player for CD ROM Burner Compatible with Laptop Desktop PC Windows Linux OS Apple Mac Black : Electronics
![Amazon.com: Hcsunfly External CD/DVD Drive for Laptop, USB 3.0 Ultra-Slim Portable Burner Writer Compatible with Mac MacBook Pro/Air iMac Desktop Windows 7/8/10/XP/Vista (White) : Electronics Amazon.com: Hcsunfly External CD/DVD Drive for Laptop, USB 3.0 Ultra-Slim Portable Burner Writer Compatible with Mac MacBook Pro/Air iMac Desktop Windows 7/8/10/XP/Vista (White) : Electronics](https://m.media-amazon.com/images/I/61WkKVrze3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Hcsunfly External CD/DVD Drive for Laptop, USB 3.0 Ultra-Slim Portable Burner Writer Compatible with Mac MacBook Pro/Air iMac Desktop Windows 7/8/10/XP/Vista (White) : Electronics
![Amazon.com: External DVD Drive USB 3.0 Type-C CD Burner Portable CD +/-RW Drive DVD Player for ROM Rewriter Burner Compatible with Laptop Desktop PC Windows MacBook Linux Mac OS : Electronics Amazon.com: External DVD Drive USB 3.0 Type-C CD Burner Portable CD +/-RW Drive DVD Player for ROM Rewriter Burner Compatible with Laptop Desktop PC Windows MacBook Linux Mac OS : Electronics](https://m.media-amazon.com/images/I/71DV53wvnBL._AC_UF894,1000_QL80_.jpg)
Amazon.com: External DVD Drive USB 3.0 Type-C CD Burner Portable CD +/-RW Drive DVD Player for ROM Rewriter Burner Compatible with Laptop Desktop PC Windows MacBook Linux Mac OS : Electronics
![External DVD Drive, Doosl USB 3.0 Type-C Portable CD/DVD+/-RW Drive/DVD Player for Laptop, CD Burner Compatible with Desktop PC Laptop Windows Linux OS Apple Mac - Walmart.com External DVD Drive, Doosl USB 3.0 Type-C Portable CD/DVD+/-RW Drive/DVD Player for Laptop, CD Burner Compatible with Desktop PC Laptop Windows Linux OS Apple Mac - Walmart.com](https://i5.walmartimages.com/seo/External-DVD-Drive-Doosl-USB-3-0-Type-C-Portable-CD-DVD-RW-Drive-DVD-Player-Laptop-CD-Burner-Compatible-Desktop-PC-Laptop-Windows-Linux-OS-Apple-Mac_b9179bf8-b968-42fe-b2e6-8e4aec3fdbae.5933cb1f04719d36d6014fcbace00cd2.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
External DVD Drive, Doosl USB 3.0 Type-C Portable CD/DVD+/-RW Drive/DVD Player for Laptop, CD Burner Compatible with Desktop PC Laptop Windows Linux OS Apple Mac - Walmart.com
![Amazon.com: External 8X DVD/CD Disc Player 24x CD-RW Burner for HP Envy X360 X 360 13t 13 t 17t 17 M6 2-in-1 15.6" Touch Screen Laptop DVD-ROM Combo Reader USB Pop-Up Portable Amazon.com: External 8X DVD/CD Disc Player 24x CD-RW Burner for HP Envy X360 X 360 13t 13 t 17t 17 M6 2-in-1 15.6" Touch Screen Laptop DVD-ROM Combo Reader USB Pop-Up Portable](https://m.media-amazon.com/images/I/61xgMiCdvnL.jpg)
Amazon.com: External 8X DVD/CD Disc Player 24x CD-RW Burner for HP Envy X360 X 360 13t 13 t 17t 17 M6 2-in-1 15.6" Touch Screen Laptop DVD-ROM Combo Reader USB Pop-Up Portable
![A Shiny Silver Cd With A Hole In The Middle Stock Illustration - Download Image Now - Compact Disc, DVD, CD-ROM - iStock A Shiny Silver Cd With A Hole In The Middle Stock Illustration - Download Image Now - Compact Disc, DVD, CD-ROM - iStock](https://media.istockphoto.com/id/124680037/vector/a-shiny-silver-cd-with-a-hole-in-the-middle.jpg?s=612x612&w=is&k=20&c=u4AkhjhaUmkDgxyA4H2FTAGyBXUFiDoP9aq78ofcuH0=)