OMB批准OMB编号:3235-0145截止日期:1997年12月31日估计平均响应时间....14.90美国证券交易委员会,华盛顿特区20549___)* Quantum Corp HDDG Com(发行人名称)普通股(证券类别名称)747906303 (CUSIP编号)以及任何包含可能改变前一封面所提供的披露信息的后续修订。所需的信息在本封面页的其余部分不得被视为“提起”为目的的部分18 1934年证券交易法(“法”)或其他主体的负债部分的行为但应当接受所有其他规定的行为(然而,看到笔记)。第2页(共2页)第1页报告人姓名S.S.或I.R.S.身份证明号由上述人士桑福德伯恩斯坦公司,INC .) 767年纽约纽约第五大道10153 2检查适当的盒子如果组的一个成员(A) / / / / 3秒(b)只使用4公民或组织的地方5唯一投票权0 6共享投票权实益0股数量由每7唯一决定性的力量报道人共有8处置权0 9总金额每个报告人有权拥有* 0 10如第(9)行合计金额不包括某些股份/ /第9行金额所代表的类别的11% 0% 12报告人类型IA/BD *于2000年10月2日,通过收购Bernstein的投资咨询资产,Alliance Capital Management L.P.(“Alliance”)获得了之前由Sanford C. Bernstein & Co., Inc.(“Bernstein”)实益所有的Quantum Corp HDDG Com股份的实益所有权。 Pursuant to this acquisition, Bernstein assigned its investment management agreements to Alliance. Accordingly, ownership of these shares will be reflected in the filings of AXA Financial, Inc. the parent company of Alliance. Contact names and numbers of persons formerly with Bernstein remain the same as part of Alliance. Sanford C. Bernstein & Co., Inc. Investment Research and Management 1 North Lexington Avenue, White Plains NY 10601 914-993-2300 Fax 914-993-2616 Registered Investment Advisor Member, New York Stock Exchange, Inc. SCHEDULE G Under the Securities Exchange Act of 1934 Item 1(a): Quantum Corp HDDG Com Item 1(b): 500 McCarthy Blvd. Milpitas CA 95035 Item 2(a): Sanford C. Bernstein & Co., Inc. Item 2(b): 767 Fifth Avenue New York NY 10153 Item 2(c): New York Item 2(d): Common Item 2(e): 747906303 Item 3: Investment Advisor/Broker Dealer Item 4(a): 0 Item 4(b): 0% Item 4(c)(i): 0 Item 4(c)(ii): 0 Item 4(c)(iii): 0 Item 4(c)(iv): 0 Item 5: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].* Item 6: Not Applicable Item 7: Not Applicable Item 8: Not Applicable Item 9: Not Applicable Item 10: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purpose or effect. * On October 2, 2000, Alliance Capital Management L.P. ("Alliance") acquired beneficial ownership of the shares of Quantum Corp HDDG Com that were formerly beneficially owned by Sanford C. Bernstein & Co., Inc. ("Bernstein") through Alliance's acquisition of the investment advisory assets of Bernstein. Pursuant to this acquisition, Bernstein assigned its investment management agreements to Alliance. Accordingly, ownership of these shares will be reflected in the filings of AXA Financial, Inc. the parent company of Alliance. Contact names and numbers of persons formerly with Bernstein remain the same as part of Alliance. Schedule G Under the Securities Exchange Act of 1934 Page Two Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. November 8, 2000 Date /s/ Michael Borgia Signature Michael Borgia, Senior Vice President Name/Title