Feature films:

• Nausicaä of the Valley of the Wind (1984)
  (If it appears distorted adjust the aspect ratio in your media player. I find 16:9 in VLC to be best.)
  Screencap | Soundtrack
• Castle in the Sky (1986)
  Screencap | Soundtrack
• Grave of the Fireflies (1988)
  (Dual-audio, English+Japanese)
  Screencap | Soundtrack
• My Neighbour Totoro (1988)
  Screencap | Soundtrack
• Kiki’s Delivery Service (1989)
  Screencap | Soundtrack
• Only Yesterday (1991)
  (Dual-audio, Chinese+Japanese.)
  Screencap | English Subtitles | Soundtrack
• Porco Rosso (1992)
  Screencap | Soundtrack
• Ocean Waves (1993)
  (In Japanese only. Includes soft-coded English subtitles.)
  Screencap | Soundtrack
• Pom Poko (1994)
  Screencap | Soundtrack
• Whisper of the Heart (1995)
  Screencap | Soundtrack
• Princess Mononoke (1997)
  (Dual-audio, English+Japanese)
  Screencap | Soundtrack
• My Neighbours the Yamadas (1999)
  (In Japanese only. Includes hard-coded English subtitles.)
  Screencap | Soundtrack
• Spirited Away (2001)
  Screencap | Soundtrack
• The Cat Returns (2002)
  Screencap | Soundtrack
• Howl’s Moving Castle (2004)
  (Dual-audio, English+Japanese.)
  Screencap | Soundtrack
• Tales from Earthsea (2006)
  Screencap | Soundtrack
• Ponyo (2008)
  Screencap | Soundtrack
• Arrietty (2010)
  (In Japanese only.)
  Screencap | English Subtitles | Soundtrack

Short films (All in Japanese):

• Ghiblies Ep. 1 (2000)
  (Includes hard-coded English subs.)
  Screencap
  Ghiblies Ep. 2 (2002)
  (Includes soft-coded English subs.)
  Screencap
• The Night of Taneyamagahara (2006)
  (Includes soft-coded English and Japanese subs.)
  Screencap
• Iblard Jikan (2007)
  (Silent film.)
  Screencap | Soundtrack

(via brain-food)